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A quintillion is equal to 1018 in the short scale, or 1030 in the long scale.[1][2][3][4]

Written out in decimal form quintillion (in the short scale) is:

1000000000000000000

In long scale:

1000000000000000000000000000000

This number is also called hexillion in Russ Rowlett's Greek-based naming system.[5]

Aarex Tiaokhiao calls this number hetillion.[6] He also gave name ocdoocol and 18-noogol, referring to the short scale value of this number.[7]

Wikia user NumLynx gave the name sexasand for this number's short scale value.[8]

Nicolas Chuquet coined tryllion for 1018 (not to be confused with 1032), according to the Triparty en la science des nombres, which was previously lost and not rediscovered until 1880. [9][10] Later it became trillion in long scale.

DeepLineMadom calls the number troo-yodecol, and is equal to 10[3]18 in DeepLineMadom's Array Notation.[11]

Examples[]

  • Niagara Falls takes up 210,000 years (about 30 times all recorded history) to use up a quintillion gallons of water.
  • A single drop of water contains 1.7 quintillion water molecules.
  • The distance from the Milky way to Andromeda is 2 million light years, which is about 11.73 quintillion miles or 18.877 quintillion kilometers.
  • The entire Earth contains about 326 quintillion gallons of water.[12]
  • There are about 43.3 quintillion ways to arrange a 3×3×3 Rubik's Cube.[13]
  • The SI prefix exa- multiplies by one quintillion.
  • The Earth's cross section has an area of about 1.275 quintillion square centimeters. [14]
  • By one estimate, there are 20 quintillion living animals on Earth.[15]
  • a tower of a quintillion one dollar bills would aproximately measure 1.099*10^20m in height.
  • The half-life of Bismuth-209 is approximately 20 quintillion years.
  • There are about 6.2 quintillion electrons carried by a charge of 1 coulomb (e-1).[16][17]
  • The maximum value of a 64-bit signed integer, 263 - 1, is about 9.2 quintillion.

As a banknote denomination[]

HUP 100MB 1946 obverse

1020 pengő banknote from Hungary in 1946. It is printed with "Százmillió B. Pengő", where "százmillió" means one hundred million, "B." stands for billió, which is equivalent to a billion in the long scale, or a trillion in the short scale.[18] Therefore it means 100 million trillion = 100 quintillion.

The highest denomination banknote ever issued in the world, recorded in the Guiness World Record online[19], was the 100 million billion pengő (100 quintillion = 1020 because billion is long scale) from Hungary, printed in 1946 during one of the worst hyperinflations ever recorded. See also Currency-related numbers.

Approximations[]

For short scale:

Notation Lower bound Upper bound
Scientific notation \(1\times10^{18}\)
Arrow notation \(10\uparrow18\)
Steinhaus-Moser Notation 15[3] 16[3]
Copy notation 9[18] 1[19]
Taro's multivariable Ackermann function A(3,56) A(3,57)
Pound-Star Notation #*(4,1,3)*6 #*(3,1)*13
BEAF {10,18}
Hyper-E notation E18
Bashicu matrix system (0)(0)[31622] (0)(0)[31623]
Hyperfactorial array notation 19! 20!
Fast-growing hierarchy \(f_2(54)\) \(f_2(55)\)
Hardy hierarchy \(H_{\omega^2}(54)\) \(H_{\omega^2}(55)\)
Slow-growing hierarchy \(g_{\omega^{\omega+8}}(10)\)

For long scale:

Notation Lower bound Upper bound
Scientific notation \(1\times10^{30}\)
Arrow notation \(10\uparrow30\)
Steinhaus-Moser Notation 22[3] 23[3]
Copy notation 9[30] 1[31]
Taro's multivariable Ackermann function A(3,96) A(3,97)
Pound-Star Notation #*(9,6,4)*9 #*(0,1,0,0,1)*5
BEAF {10,30}
Hyper-E notation E30
Bashicu matrix system (0)(0)(0)[5623] (0)(0)(0)[5624]
Hyperfactorial array notation 28! 29!
Fast-growing hierarchy \(f_2(93)\) \(f_2(94)\)
Hardy hierarchy \(H_{\omega^2}(93)\) \(H_{\omega^2}(94)\)
Slow-growing hierarchy \(g_{\omega^{\omega3}}(10)\)

Gallery[]

Sources[]

  1. Cambridge Dictionary Quintillion
  2. Larousse (French dictionary) Quintillion (source for long scale in French)
  3. Conway and Guy. The Book of Numbers. Copernicus. 1995. ISBN 978-0387979939 p.14
  4. Quintillion at Wolfram MathWorld
  5. Russ Rowlett Names for Large Numbers Archived 2006-01-10.
  6. Aarex Tiaokhiao's illion numbers[dead link]
  7. Part 1 (LAN) - Aarex Googology[dead link]
  8. NumLynx's Large Numbers
  9. Olivier Miakinen, Grands nombres : 1270-1961, sept siècles d'histoire in Écriture des nombres en français. 1 May 2004
  10. Robert Munafo, Origins of the Chuquet Number Names
  11. Pointless Googolplex Stuffs - DLMAN Part 1 (retrieved 9 November 2024)
  12. Saibian, Sbiis2.1.5 - Everyday Large Numbers for a Modern World. Retrieved 2013-06-11.
  13. Notable Properties of Specific Numbers (page 18)
  14. Almost Infinite
  15. How Many Wild Animals Are There?
  16. Lopac, Vjera, and Dario Hrupec. "What exactly are the new definitions of kilogram and other SI units?." The Physics Teacher 58.1 (2020): 58-60.
  17. https://metricsystem.net/derived-units/special-names/coulomb/
  18. Láng Attila D. Nagy számok (large number) (in Hungarian)
  19. Guiness World Record. https://www.guinnessworldrecords.com/world-records/highest-denomination-banknote Retrieved 2024-09-18.

See also[]

Main article: -illion
1–9: million · billion · trillion · quadr · quint · sext · sept · oct · non
10–19: decillion · undec · duodec · tredec · quattuordec · quindec · sexdec · septendec · octodec · novemdec
20–29: vigintillion · unvigint · duovigint · tresvigint · quattuorvigint · quinvigint · sesvigint · septemvigint · octovigint · novemvigint
30–39: trigintillion (un- · duo- · tres- · quattuor- · quin- · ses- · septen- · octo- · noven-)
40–49: quadragintillion (un- · duo- · tres- · quattuor- · quin- · ses- · septen- · octo- · noven-)
50–59: quinquagintillion (un- · duo- · tres- · quattuor- · quin- · ses- · septen- · octo- · noven-)
60–69: sexagintillion (un- · duo- · tre- · quattuor- · quin- · se- · septen- · octo- · noven-)
70–79: septuagintillion (un- · duo- · tre- · quattuor- · quin- · se- · septen- · octo- · noven-)
80–89: octogintillion (un- · duo- · tres- · quattuor- · quin- · sex- · septem- · octo- · novem-)
90–99: nonagintillion (un- · duo- · tre- · quattuor- · quin- · se- · septe- · octo- · nove-)
100–900: centillion · ducent · trecent · quadringent · quingent · sescent · septingent · octingent · nongent
1,000–1030: millillion · dumill · dumillinonagintanongent · trimill · trimilliduotrigintatrecent · trimillisexoctogintaoctingent · quadrimill · quadrimilliquattuordecicent · quinmill · sexmill · septimill · octimill · nonimill · myr · decimilliquinsexagintasescent · dumyr · unquadragintamilliunquinquagintacent · centimill · micr · nan · pic · femt · att · zept · yoct · ront · quect
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