quintillion

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quintillion

1. (in Britain, France, and Germany) the number represented as one followed by 30 zeros (1030)
2. (in the US and Canada) the number represented as one followed by 18 zeros (1018)
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

quintillion

[kwin′til·yən]
(mathematics)
The number 1018.
In British and German usage, the number 1030.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

quintillion

10^30 in Europe (this is called a nonillion in the United States and Canada).

10^18 in the United States and Canada (this is called a trillion in Europe).

[Collins dictionary].
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

quintillion

One thousand times one quadrillion, which is 1, followed by 18 zeros, or 10 to the 18th power. See space/time.
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References in periodicals archive ?
Longest: sexdecillion, two nonillion and tredecillion (12 letters each).
Highest minus E: sixty-six vigintillion, sixty-six nonillion, sixty-six octillion, sixty-six quintillion, sixty-six quadrillion, sixty-six trillion, sixty-six billion, sixty-six million, sixty-six thousand, sixty-six.
SEVENTH = Sixty-Eight Vigintillion Eighty Nonillion Two Hundredth & Seventy-Eight Vigintillion Eighty Novemdecillion Three Hundredth.
SEVENTEEN = Sixty-Eight Vigintillion Eighty-Nine Trillion Eight Eighty-Nine & Seventy-Eight Vigintillion Eighty Nine Tredecillion Eighty-Eight Nonillion.
SEVENTEENTH = Sixty-Eight Vigintillion Eighty-Nine Tredecillion Eighty-Eight Nonillion Two Hundredth & Seventy-Eight Vigintillion Eighty-Nine Tredecillion Eighty-Eight Nonillion Three Hundredth.
TENTH= Twenty-Eight Nonillion Two Hundredth & Thirty-Eight Novemdecillion Three Hundredth.
includes both trillion and nonillion, too unweildy for mere mortals.
The same argument goes for these numbers too: TRILLION, QUADRILLION, QUINTILLION, SEXTILLION, SEPTILLION, OCTILLION, NONILLION, DECILLION, UNDECILLION, DUODECILLION, TREDECILLION, QUATTUORDECILLION, QUINDECILLION, SEXDECILLION, SEPTENDECILLION, OCTODECILLION, NOVEMDECILLION, VIGINTILLION ...
Let me remind you where we had got to; NONILLION was just about to save the day.
NONILLION is made entirely from letters for which we have found a solution and, in addition, L.