noun. quat·tu·or·de·cil·lion ˌkwä-tə-ˌwȯr-di-ˈsil-yən. often attributive. US : a number equal to 1 followed by 45 zeros see Table of Numbers. also, British : a number equal to 1 followed by 84 zeros see Table of Numbers.
noun, plural quat·tu·or·de·cil·lions, (as after a numeral) quat·tu·or·de·cil·lion. a cardinal number represented in the U.S. by 1 followed by 45 zeros, and in Great Britain by 1 followed by 84 zeros.
Definition of vigintillion
a cardinal number represented in the U.S. by 1 followed by 63 zeros, and in Great Britain by 1 followed by 120 zeros.
noun, plural sex·de·cil·lions, (as after a numeral) sex·de·cil·lion. a cardinal number represented in the U.S. by 1 followed by 51 zeros, and in Great Britain by 1 followed by 96 zeros. amounting to one sexdecillion in number.
Written out in ordinary decimal notation, it is 1 followed by 10100 zeroes; that is, a 1 followed by a googol of zeroes.
noun, plural cen·til·lions, (as after a numeral) cen·til·lion. a cardinal number represented in the U.S. by 1 followed by 303 zeros, and in Great Britain by 1 followed by 600 zeros.
A unit of quantity equal to 10282 (1 followed by 282 zeros).
A unit of quantity equal to 1099 (1 followed by 99 zeros).
Zillion is not actually a real number; it's simply a term used to refer to an undetermined but extremely large quantity.
Zillion sounds like an actual number because of its similarity to billion, million, and trillion, and it is modeled on these real numerical values. However, like its cousin jillion, zillion is an informal way to talk about a number that's enormous but indefinite.
Like zillion and jillion, gazillion is a made-up word meaning "a whole bunch" that's modeled after actual numbers such as million and billion.
A unit of quantity equal to 1072 (1 followed by 72 zeros).
Then, you finally reach Millinillion. Repeat with those numbers to reach Billinillion. After that comes a Trillinillion, Quadrillinillion, Quintillinillion, Sextillinillion, Septillinillion, Octillinillion, Nonillinillion, and on...
Then comes quadrillion, quintrillion, sextillion, septillion, octillion, nonillion, and decillion. One of my favorite challenges is to have my math class continue to count by "illions" as far as they can.
A unit of quantity equal to 10120 (1 followed by 120 zeros).
A unit of quantity equal to 1096 (1 followed by 96 zeros).
What's bigger than a googolplex? Even though a googolplex is immense, Graham's number and Skewes' number are much larger. Named after mathematicians Ronald Graham and Stanley Skewes, both numbers are so large that they can't be represented in the observable universe.
noun, plural oc·to·de·cil·lions, (as after a numeral) oc·to·de·cil·lion. a cardinal number represented in the U.S. by 1 followed by 57 zeros, and in Great Britain by 1 followed by 108 zeros.
The longest number with a name is the Googleplexian. A Googolplexian is a number with 10100 zeroes. Whilst larger numbers can be imagined, the Googolplexian is the largest number that could be found in the dictionary.
A googol, officially known as ten-duotrigintillion or ten thousand sexdecillion, is a 1 with one hundred zeros after it. Written out, a googol looks like this: 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.
There's not a googol of anything physical in the universe. On the other hand, numbers larger than a googol routinely arise in application. When you're counting potential things rather than physical things you can run into numbers much larger than a googol. This happens all the time in probability calculations.
Google is the word that is more common to us now, and so it is sometimes mistakenly used as a noun to refer to the number 10100. That number is a googol, so named by Milton Sirotta, the nephew of the American mathematician Edward Kasner, who was working with large numbers like 10100.