. In the long scale, (10^{1203}) is called ducentilliard. One million = 1×10 6. It gaind alot of popularity. The next named number after trillion is quadrillion, which is a 1 with 15 zeros after it:. Commit time. In this way, numbers up to 10 3·999+3 = 10 3000 (short scale) or 10 6·999 = 10 5994 (long scaleMicrillion is also known as one milliamilliatillion according to Landon Curt Noll's The English name of a number. This number is also called tetreicosillion in Russ Rowlett's Greek-based naming system (not to be confused with tetreicosillion). In the long scale, (10^{1503}) is called quinquagintaducentilliard. For the sake of consistency, zillions are[ assumed to be in short scale by default, as this is the more commonly-used scale in the English language. The number with the longest name. Main Page; Discuss; All Pages; Community; Interactive Maps; Recent Blog Posts;. 2. This number is also called dekillion (not to be confused with decillion) in Russ Rowlett's Greek-based naming system of -illions. Illion; Numbers; Powers of 10; Community content is available under CC-BY-SA unless otherwise noted. 5 million cash) won by The Great Hope Trust in Ohio. Tillion - 10^0. The latin root sexagint signifies sixty and the -illion is the common element in the number naming systems. "Undecillion" would be a 1 followed by 36 zeroes). The next -illion system to discuss is a system both more well-known and more extensible than Henkle's. A fifteenth-century mathematician, Nicolas Chuquet, established one system by combining Latin numerical prefixes (bi-, tri-, etc. It is 304 digits long in the short scale, or 601. see also List of googologisms and Powers of a million. If the observable universe was 1 meter across, 1 octovigintillion gallons of water. Apr 15, 2011The name centillion was devised in the 19th century for the 100th "illion", being 10 303 in short form and 10 600 in long form. Lottery Numerology Predictions Weekly lottery predictions. If hundreds = 0, tens = 1 : use second option ones root followed by tens root and then illion. Skip to navigation. Four seasons numbers. 15. 99. 5 comments. Overview. Millillion / Quingentilliard(L), 103003 Unmillillion, 103006 Duomillillion, 103009 Tremillillion, 103012 Quattuormillillion, 103015 Quinmillillion, 103018. The naming procedure for large numbers is based on taking the number n occurring in 10 3n+3 (short scale) or 10 6n (long scale) and concatenating Latin roots for its units, tens, and hundreds place, together with the suffix -illion. It represents the highest number name generally found in dictionaries, as opposed to devised by the devotees of large numbers. Templates; Candidates for deletion; Stubs; Unattributed files; Hatnote templates with errors; Media. 27 Supreme Level. 3 List of prefixed numbers derived from quinquagintillion; 4 Sources; 5 See also; Decimal expansion []. Arithmetic. g. Crawled-People-Names. BEAF numbers beyond tetrational arrays, BIG FOOT, Little Bigeddon, Sasquatch, Oblivion, Utter Oblivion, and large numbers whose well-definedness is not known, e. Maybe29 gave the name Kerepatawa Number's for the short scale verstion of. 4 The -illion Series. Explore. Fan Feed More Massive Numbers. [3] In the long scale, 10 30 is called a quintillion. The naming procedure for large numbers is based on taking the number occurring in (short scale) or (long scale) and concatenating Latin roots for its units, tens, and hundreds place, together with the suffix –illion. We will now wrap up the 3rd Tier in this table: Polytwister Image Created by Jonathan Bowers (Used with Permission) 2. Let’s understand the meaning and conversion of million, billion, trillion in terms of rupees here. By derivation, a. The name comes from the suffix -illion and the Greek prefix meicosa-that signifies 21. Among Epstein system derivatives: a zettilliard is a thousand zetillion. In the long scale it is the 103rd power of a million and in the short scale the 103rd power of a thousand starting with a million (the. In the long scale it is the eigthieth power of a million and in the short scale the eightieth power of a thousand starting with a million. This. 1 Illion; 2 Super ultimate list of large numbers; 3 Million; Explore properties. Estimated Jackpot: Cash Option: Mega Millions ® drawings are held Tuesday and Friday at 11:00 pm ET. the 1000th 'illion' is one millinillion in Conway. 3. The system involving Bowers' illions [1] is an unofficial extended number system of illions past the basic Latin based such as millillion . The term was coined by Jonathan Bowers. NUMBER NAME NUMBER NAME; 10 1: ten: 10 33: decillion: 10 2: hundred: 10 36: undecillion: 10 3: thousand: 10 39: duodecillion: 10 4: ten thousand: 10 42: tredecillion. 3. 80 merging the 2 big tables. In the American system, which was taken from the French around 1800, the Latin prefix tells how many groups of 3 places are in the written number, not counting the first group of three (the one which represents numbers up to 999. The -illion is a notation and naming system used to systematically generate number names after million in English, and has variants in many other languages. Where to Play Multi-state game participants. See List of numbers for values and links and List of illion numbers for other names and some links. Money is the base currency in AdVenture Capitalist. Googolplexian - Biggest Known NumberCentillion - Biggest . View the latest Mega Millions numbers every Tuesday and Friday evening here following the lottery draw at 23:00 ET to see which balls were selected. April 25, 2019 09:17. In both systems the names of the numbers are constructed with Latin prefixes attached to “-illion” (see History). Maximize the fun you can have this Pi Day by checking out our. It is 64 digits long in short scale, and 121 digits. List of 10,000 zillion numbers with Conway-Wechsler system. The reciprocal, 1. Top. 11 Tier 11 - Native Korean Numerals. Group-numbers and. In the Epstein system 1,000,000 1060 is a decillio-illion . [1] It was supposedly in Tier E (schmittyillion)#…yersohotillion^# (palillion). Definition. Click the "Generate List of Numbers" button above and results will display here. Usage of Naming Systems of Large Numbers in different CountriesTier 2 -illion numbers; Class 2; Numbers with 1000 to 1000000 digits; Ascen Series in -illions; Illion; Community content is available under CC-BY-SA unless otherwise noted. For example, 54,598,394,123 would show up as "54. The long scale is Chuquet's original system, and has digits grouped 6 at a time, thus trillion is a million times larger than billion. In Cloudy176's system, this number is called bitterswillion or mextillion. Millions show up in all kinds of contexts, even as hyperbole and in today's idioms (e. Million Billion Trillion List. Skip to main content. Although the name makes it sound like a small number, this system allows for a natural continuation of the -illion names as we will see with later numbers on this list. 448-450; also appeared in Scientific American in November 1977. cuatro. In long scale the number. Trioicosillion is equal to 103*1069+3. In both systems the names of the numbers are constructed with Latin prefixes attached to “-illion” (see History). It is the square root of a googol. Centillion is the accepted name for the 100th entry in the typical -illion system whether in short scale or long scale. View full site for showing MathJax equation A septuagintasescentillion is equal to (10^{2013}) in the short scale and (10^{4020}) in the long scale by the Conway and Guy's naming system as it is the 670th -illion number. This number is somewhat less than the Epstein system sextillia-illio-illio-illion which is 10 6*10 6*10 6*10 39. This statement relates. Femtillion is also known as one. View source. For the short scale: For the long scale:Zettillion is equal 103*103*10^21+3 in the system used by Jonathan Bowers, and the name is based on large SI prefixes. Many of the more famous big numbers are simple in creation: a googol is 10 100 and a googolplex is 10 googol . View full site for showing MathJax equation Ekatommyrillion is equal to 103,000,000. Large numbers value in powers of ten number of zeros American name British name 10 9: 9 billion. List of prefixed numbers derived from octogintillion [] Name Short scale Long scale; unoctogintillion: 10 246: 10 486: duooctogintillion: 10 249: 10 492: tresoctogintillion: 10 252:. The number is so big that only legends can say the number. Perhaps the best known -illion system amongst the googology community is a system proposed by Jonathan Bowers, an important figure in googology. List Of -Illions. a decaronnillio-illion is a million. Multillion; Nonecxenulti-nonecxenersi-nonecxenupi-nonecxenaxi-nonecxenoci-nonecxeneti-nonecxenoli-nonecxenovi-nonecxenermi-nonecxenuni-nonecxenasti-nonecxeniji-nonecxeneji-nonecxenali. This numbers go exploding up and up!. I suggest using number names from foreign languages for your illion numbeers. If tens value > 0 , and hundreds value = 0, list roots from ones to tens, and use 2nd option ones roots (drop any " t "), and drop " i " from tens root before following with illion to form the tier 1 separatrix. , derived from Latin) to the stem -illion. In the long scale, (10^{603}) is called centilliard. In the long scale, 109 is called milliard, whereas "billion" refers to 1012 = 1,000,000,000,000. 10) in. Comparison. [2] It is sometimes erroneously referred to as nontillion. Main Page; Discuss; All Pages; Community; Interactive Maps; Recent Blog Posts; Wiki Content. List of illion numbers. 06. m. 22 Tier 22 - Greek Numerals + -illio. The numbers for tonight or the most recent draw are shown below, along with the winning Millionaire Maker code. 10 143*10300+3. Help; Home Sign in to edit View history Talk (0) 1 Million 6 1 1 Single 2 Billion 9 4 8 Double 3 Trillion 12 9 27. In this page, English names of -illion numbers with Conway-Wechsler system is defined The next number after trillion is quadrillion, or a 1 with 15 zeros after it: 1,000,000,000,000,000. g. In the long scale, (10^{2106}) is called unquinquagintatrecentillion. See also List of googologisms and its sub-articles and Powers of a. That's all information. My tier 10 -illion numbers. Vigintillillion is a number that comes from a part of Vigintillion which is only 10^63 in short scale, but 10^120 in long scale(the 20th power of a million). 2. like this. List of prefixed numbers derived from quadragintillion [] Name Short scale Long scale; unquadragintillion: 10 126: 10 246: duoquadragintillion: 10 129: 10 252: tresquadragintillion: 10 132: 10 258: quattuorquadragintillion:. [1]. A trillion is the 3rd -illion, equal to 10 to the 12th power, one followed by twelve zeros, and a million millions. Million. 2. My Ember Arena numbers. Etymology [] The name "ottillion" is based on the prefix "otta" and the suffix "-illion". This name was assigned in the early 1990s after the official adoption of the prefix zetta- for 1021;previously the name for this number had been trillia-illion (a million raised to a trilliard). type the numbers or letter! f (n) = (n = even) or (n = odd)4 Months Ago, List Of Illion Numbers was Released. Fandom Muthead Fanatical Follow Us. Fandom. Written out in decimal form sescentillion (in the short. He's a name we'll run into a lot throughout this site, and our first encounter with his work is his take on extending the -illions. See List of numbers for values and links and List of illion numbers for other names and some links. Hxillion - 10^0. Uncentillion in other notations. Two naming scales for large numbers have been used in English and other European languages since the early modern era: the long and short scales. More Massive Numbers. Mega Millions ® drawings are held Tuesday and Friday at 11:00 pm ET. Numbered list maker. A Duovigintillion is equal to 10 69, nice. Home. Sextillion is the sixth -illion number,in long scale the sixth power of a million or 10 36 . In the long scale, (10^{2403}) is called quadringentilliard. Therefore 10^6 is 10 6. Advertisement. The number with the longest name ever in the entire everything ever. . Long scale is the original version devised by Nicolas Chuquet,and has become increasingly rare in English though it has enjoyed a definite renaissance in French use. Million Billion Trillion Quadrillion Quintillion Sextillion Septillion Octillion Nonillion Decillion Vigintillion Trigintillion Centillion Millillion Myrillion Micrillion Nanillion Picillion Femtillion Attillion Zeptillion Yoctillion Xonillion Vecillion Mecillion Duecillion Trecillion. Illion's phone number is +61 398283200 What is Illion's official website? Illion's official website is What is Illion's Revenue? Illion's revenue is $177. -yllion (pronounced / aɪ lj ən /) is a proposal from Donald Knuth for the terminology and symbols of an alternate decimal superbase [clarification needed] system. Names derived from millillion include Henkle's millimillillion for the millionth. If You Include Every Number Known Even The Ones Not In A Single Official Dictionary. The ones less than micrillion are shown on the above mentioned web site, naming rules up to the millillion range are mentioned in The Book of Numbers by Conway and Guy. These definitions are no longer used in English-speaking. Written out with. In short scale it is 10 1203 as the 400th power of a thousand starting with a million,in long scale it is 102400 as the 400th power of a million. Sextillion. 3. 10^10^10^10^10^ 3000 = Hap axillion. 5 days after The Movie was released, Seas. with Benny Lewis. Illions. no traditional long scale name for 1012000 has been established but William Henkle in 1860 proposed bi-millillion. To reverse list of generated numbers click the "Reverse List" button. The money on Moon is called "Moon Dollars", which are represented by an inward curved D with a. This number can be imagined as the cube with sidelength of 100 octillion (1029). In the long scale, (10^{513}) is called. . g. List of 10,000 zillion numbers (another page) Definition Conway-Wechsler system. Fan Central BETA Games Anime Movies TV VideoThe system involving Bowers' illions [1] is an unofficial extended number system of illions past the basic Latin based such as millillion . g. A trecentillion is equal to (10^{903}) in the short scale and (10^{1800}) in the long scale by the Conway and Guy's naming system as it is the 300th -illion number. Okoromokoro • 22 December 2021 • User blog:Okoromokoro. Million Billion Trillion Quadrillion Quintillion Sextillion Septillion Octillion Nonillion Decillion Undecillion Duodecillion Tredecillion Quatuordecillion. What is Fandom?. Group Name In this rectangle put the group number you want to know the Latin name of. Sbiis Saibian uses the term viginti-untillion for this number, since the order of terms should. 0 million cash) won by an anonymous player in Leander, Texas. The first 10 digits of pi (π) are 3. Learn: 1 Million means. See the latest EuroMillions results to find out if you are a winner. 2. It is the largest -illion with a recognized name in the English language other than the much larger centillion, although the extended names to the -illions like unvigintillion have been recognized by many people as well. Full list; Sublists (small) Class 0 and 1; Class 2; Class 3; Class 4; Class 5; Tetration level; Up-arrow notation level; Linear omega level; Quadratic omega level;Janillion is a name that has been given to 103*103*103*10300+3 (or 103hotillion3 in Jonathan Bowers parlance though this name was not coined by Bowers). Quadrillion. Currently, it is the largest number with a name ending in -illion that he has coined. Wikipedia ; French [edit] Etymology [edit] Back-formation from million, ultimately from Italian mille (“ thousand ”) and the augmentative suffix -one. a ronnillio-illiard is a thousand ronnillio-illion. 2013. Those in bold italics are forms that change according to gender, while the non-italic forms are fixed. The name dates to the 1484 list of illions created by Nicolas Chuquet. Overview. 26 Tier 26 - Old English Numerals. But We Can Go Further. Vigintillion is a name that dates to the 1830s or 1840s,defined in the Long scale as 10120 (the 20th power of a million) and in the short scale as 1063 (the long scale decilliard). (In the Epstein system bicentillion is preferred for the latter value to avoid confusion with the. Each period is 1,000 times larger than the. Community content is available under CC-BY-SA unless otherwise noted. e. 3. The latin root quint signifies five and the -illion is the common element in the number naming systems. Welcome to the wiki where fan-on numbers live. There are many big numbers: there are infinitely many of them. Fandom Muthead Fanatical Follow Us. Hpillion - 10^0. It is used for all business-related upgrades, managers, and angel investor accumulation. Compare to the Epstein system quinquagintillio-illion,106*106*10300 . 17 : Knuth, Donald E. Septillion. Thus he would write a million as 1'000000, a byllion as 1'000000'000000, a tryllion as 1'000000'000000'000000, a quadrillion as 1'000000'000000'000000'000000, and so on. A billillion, dumillillion is equal to 106003 in the short scale, and 1012000 in the long scale. It is the largest -illion with a name that is officially considered part of the English language - the only larger number with a recognized English name is the googolplex. Icosillion is equal to 10 3*10 60 +3. The erable. This number is also. Sexagintillion. View full site for showing MathJax equation. NAMING THE NUMBERS . Last update on February 17, 2023. It is 34 digits long in short scale, and 61 digits long in long scale. It is made by combining "mille" (1,000) with the standard -illion suffix, which is itself derived from "mille". But between 0 and 1, Aarex puts 0. My infused numbers. The word milli-millillion was coined by Professor Henkle in his system to devise one million -illions [3], and milli-millillion was the largest name. Zero One Two Three Four Five Six Seven Eight Nine Ten Eleven Twelve Thirteen Fourteen Fifteen Sixteen Seventeen Eighteen Nineteen Twenty Thirty Forty Fifty Sixty Seventy Eighty Ninety Hundred Thousand Tmillillion. In the long scale, . View full site for showing MathJax equation An unvigintiducentillion is equal to (10^{666}) in the short scale and (10^{1326}) in the long scale by the Conway and Guy's naming system as it is the 221st -illion number. (The below do NOT use SI prefixes) Fantillion 10^10^740. Unmillillion, 10 3006. Standard -illion numbers 10 3n+3 (10 6n) Main article: -illion. The term was coined by Jonathan Bowers. Googol and Googolplex While a centillion is the largest -illion number, it's not quite the largest number that has a name. For whole numbers less than a thousand million (< 10 9 ), the two. 94. The Ronnillion (formerly quadrillia-illion) is an Epstein system number,using the newly(as of 2022) approved prefix for 1027 to represent that power of a million: 10000001027 Among derivatives, a ronnilliard is a thousand ronnillion. Here’s a complete list of the participating jurisdictions and their corresponding limits on advance draw purchases for Mega Millions. cinco. The myrillion (also called decimillillion or decmillillion) is equal to (10^{30,003}) in short scale, and (10^{60,000}) in long scale. To randomize list of generated numbers click the "Randomize List" button. It's a number still small enough that we regularly hear of it in life, most often with countries having trillions of dollars in things like debt. [1] Japanese numbers WikiThe numbers in Spanish - Difference between 1 billion in English and "1 billón" in Spanish. View full site for showing MathJax equation An octingentillion is equal to (10^{2403}) in the short scale and (10^{4800}) in the long scale by the Conway and Guy's naming system and the Jonathan Bowers' system as it is the 800th -illion number. million billion trillion quadrillion quintillion sextillion. View full site for showing MathJax equation An unoctogintillion is equal to 10246 in the short scale, or 10486 in the long scale by Conway and Guy's naming system. It was just part of the first and lowest of these number names to be invented, million. One old page of Aarex's old large numbers website has a table with the numbers 0 through 20 and their names, and lists a property of each of them. This number is also called treicosillion in Russ Rowlett's Greek-based naming system (not to be confused with treicosillion). 4. Sign in to edit View history Talk (0) List [] M - Million B - Billion T - Trillion Qa - Quadrillion Qi - Quintillion Sx - Sextillion Sp -. Sextillion. The term was coined by Jonathan Bowers. There have been other number naming systems throughout history, and there are several other web pages out there listing large numbers using them, but the Conway-Wechsler system seems to be becoming the. The name of this number is based on the word "universe" and the suffix "-illion". The naming procedure for large numbers is based on taking the number n occurring in 10 3n+3 (short scale) or 10 6n (long scale) and concatenating Latin roots for its units, tens, and hundreds place, together with the suffix -illion. Name. Images; Video; Community. Googolplex: A googolplex is 10 raised to the power of a googol. Main Page; All Pages; Community; Interactive Maps; Recent Blog Posts; Numbers. Edit Edit source View history Talk (0) Categories Categories: Is there anymore; 1 undecicentillion; Quinquagintatrecentillion; Template documentation;. 10^10^10^10^10^ 10000 = Go ogolquadriplexitoll. Currently, the largest known number is Graham's number, which is too large and complicated to either be written. 42513153135 and says its name is "42513153135 hundred billionth" and its property is that it's a "funny number". Some illion numbers-thor series; Ssaallaadd; Super notation; K function; Doogol; Community. View full site for showing MathJax equation A duotrigintillion is equal to (10^{99}) in the short scale, or (10^{192}) in the long scale by Conway-Wechsler system. In the Epstein system this is a penhecexilliard. Why not calculate the circumference of a circle using pi here. Quintillion. These naming procedures are based on taking the number n occurring in 103n+3 or 106n and concatenating Latin roots for its units, tens, and hundreds place, together with the suffix -illion. The book is the same book that introduced the world to Conway's chained arrows as well as a. 3. The name of this number is based on. LNL Part II now available. Frillion is the name used in the short scale for 10 24 and the long scale for 10 42 . View full site for showing MathJax equation A ducentillion is equal to (10^{603}) in the short scale and (10^{1200}) in the long scale by the Conway and Guy's naming system or by Jonathan Bowers system as it is the 200th -illion number. View full site for showing MathJax equation A quinquinquagintacentillion is equal to (10^{468}) in the short scale and (10^{930}) in the long scale by the Conway and Guy's naming system as it is the 155th -illion number. Approximations []Numbers by Robert Munafo: This is a link to part of Robert Munafo's popular large number site. Its full decimal expansion is shown below: Sbiis Saibian calls this number googolding and gogolchime, coined in analogy to the googolgong. Advertisement. Fixed! To think that at some point in my life I felt accomplished when I learned how to count to 10 in English. Failed to load latest commit information. Trending pages. 3. 0 Million Next Drawing: Tuesday, 11/21 @ 11 p. 1 Type 1:Jillion; 2 Type 2:Unknown; 3 Type 3:Unexplainable;Mult (Bowers) • Mev • Xev • Hyp • Omn • Outs • Barr • Barrekal • Barrej • Barrij • Barrast • Barrun • Barrerm • Barrov • Barrol • Barret. 23 Tier 23 - Si Prefixes + -vers. Nonagintillion is the name used in the short scale for 10 273 and the long scale for 10 540. Hayden's Big NumbersWe would like to show you a description here but the site won’t allow us. 2. Omegacontrollersillion. Templates; Candidates for deletion; Stubs; Unattributed files; Hatnote templates with errors; Media. One billion = 1×10 9. The first 10 digits of pi (π) are 3. In short scale the name is used for 10 21 ,the long scale Trilliard . Multillon Pyrillion Guntillion Kentrillion Onlillion Paptrillion Housillion Trongillion Batillion Handrillion Mastillion Gotillion Kortillion Nenkillion Janillion. Nanillion is also known as one milliamilliamilliatillion according to Landon Curt Noll's The English name of a number. 10 143*10300+3. There isn’t a universally recognized “highest illion” number. These numbers were then. Just for clarity, in the US and for this site a. The latin root nonagint signifies ninety and the -illion is the common element in the number naming systems. Ducentillion is the accepted name for the 200th entry in the typical -illion system whether in short scale or long scale. Quintillion is the name used in the short scale for 1018 and the long scale for 1030. 046875. WORD WAYS . million billion trillion quadrillion quintillion sextillion septillion octillion nonillion decillion undecillion duodecillion tredecillion quattuordecillion quindecillion sexdecillion A comprehensive list of illion numbers from one to one million, with their names and values in different bases. Advertisement. Quadrillion is the name used in the short scale for 1015 and the long scale for 1024. Standard -illion numbers 10 3n+3 (10 6n) Main article: -illion. Aarex Tiaokhiao called this number cebillion. 3. A huge list of the largest numbers/prefixes that I put into one document. Advertisement. so i made 9 more of the same topic. In the American system, which was taken from the French around 1800, the Latin prefix tells how many groups of 3 places are in the written number, not counting the first group of three (the one which represents numbers up to 999. Pause/Resume Reset to 0 Go to maximum value Show number Max number of digits before switching to scientific (min: 10, max: 308): Reduce fps: Fast forward 1 second. 1–9:. Decillion is the accepted name for the tenth illion (the word dates to at least 1844). It comes from micr(o)-+ -illion, where micro-is analogous to the metric prefixes deci-, centi-, and milli-. Well, that’s it for my extended -illion numbers. This is because the Spanish words billión and. 1–9:. View full site for showing MathJax equation Xonillion is equal to (10^{3 imes 10^{27}+3}), or (10^{3 ext{ octillion }3}), using the short scale. g. The "Graham-Gardner number": pp. French Numbers. . In the Epstein system 10 600,000 is known as a heckilillion and 10 300,003 as a pendeckililliard . . It is both a square number and cubic number. His official part had numbers that even googolplexian had. 1 Intro to Recursion. One Thousand Million Billion Trillion Quadrillion Quintillion Sextillion Septillion Octillion Nonillion Decillion Undecillion Duodecillion Tredecillion Quattuordecillion Quindecillion Sexdecillion Septendecillion Octodecillion. 8 Jonathan Bowers' 4 Tiered -illion Series Home Return to 2 - 4 Previous : Russ Rowlett's Greek Based -illions Jonathan Bowers Jonathan Bowers is both an infamous large number enthusiast and polychorist. In the long scale which is commonly used in France and Germany, (10^{99}) is called sexdecilliard. Rules: 1. Sextillion-illion. 2019. View full site for showing MathJax equation A septuagintacentillion is equal to (10^{513}) in the short scale and (10^{1020}) in the long scale by the Conway and Guy's naming system as it is the 170th -illion number. Notations. A common choice is a prefix starting with the letter X, extrapolating from the previous two prefixes, which have initials Z and Y respectively. Contents .