- Not to be confused with quinduecillion.
A quindecillion is equal to 1048 in USA , or 1090 in France and Germany.[1][2] It is the 15th -illion.
In the long scale, 1048 is called octillion, which is commonly used in France and Germany.
This number is also called hexadekillion in Russ Rowlett's Greek-based naming system.[3]
1048 is also called Ji (極，极 in Chinese) or Goku (ごく in Japanese)[4] in both Japanese counting system and Chinese counting system.
Sbiis Saibian calls this number octilliad.[5]
Wiki User NigerianPidgin coined Tritar for this number. It not be confused with Denis's Tritar[6]
Decimal[]
- 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 - short scale
- 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 - long scale
Examples[]
- The Earth is composed of about 89 quindecillion molecules.[7]
- The prefix tenaexa- multiplies by one quindecillion.
- There are about 133 quindecillion atoms in the world.[8]
Approximations[]
For short scale:
| Notation | Lower bound | Upper bound |
|---|---|---|
| Scientific notation | \(1\times10^{48}\) | |
| Arrow notation | \(10\uparrow48\) | |
| Steinhaus-Moser Notation | 31[3] | 32[3] |
| Copy notation | 9[48] | 1[49] |
| Taro's multivariable Ackermann function | A(3,156) | A(3,157) |
| Pound-Star Notation | #*(6,3,6,4,3)*7 | #*(7,3,6,4,3)*7 |
| BEAF | {10,48} | |
| Hyper-E notation | E48 | |
| Bashicu matrix system | (0)(0)(0)(0)[1000] | |
| Hyperfactorial array notation | 40! | 41! |
| Fast-growing hierarchy | \(f_2(152)\) | \(f_2(153)\) |
| Hardy hierarchy | \(H_{\omega^2}(152)\) | \(H_{\omega^2}(153)\) |
| Slow-growing hierarchy | \(g_{\omega^{\omega4+8}}(10)\) | |
For long scale:
| Notation | Lower bound | Upper bound |
|---|---|---|
| Scientific notation | \(1\times10^{90}\) | |
| Arrow notation | \(10\uparrow90\) | |
| Steinhaus-Moser Notation | 52[3] | 53[3] |
| Copy notation | 9[90] | 1[91] |
| Taro's multivariable Ackermann function | A(3,295) | A(3,296) |
| Pound-Star Notation | #*(2,12,2,8,4,3)*10 | #*(1,3,7,7,2,2,10)*7 |
| BEAF | {10,90} | |
| Hyper-E notation | E90 | |
| Bashicu matrix system | (0)(0)(0)(0)(0)[649] | (0)(0)(0)(0)(0)[650] |
| Hyperfactorial array notation | 64! | 65! |
| Fast-growing hierarchy | \(f_2(290)\) | \(f_2(291)\) |
| Hardy hierarchy | \(H_{\omega^2}(290)\) | \(H_{\omega^2}(291)\) |
| Slow-growing hierarchy | \(g_{\omega^{\omega9}}(10)\) | |
List of prefixed numbers derived from decillion[]
| Name | Short scale | Long scale |
|---|---|---|
| undecillion | 1036 | 1066 |
| duodecillion | 1039 | 1072 |
| tredecillion | 1042 | 1078 |
| quattuordecillion | 1045 | 1084 |
| quindecillion | 1048 | 1090 |
| sexdecillion | 1051 | 1096 |
| septendecillion | 1054 | 10102 |
| octodecillion | 1057 | 10108 |
| novemdecillion | 1060 | 10114 |
Sources[]
- ↑ Merriam-Webster Dictionary Quindecillion
- ↑ Quindecillion at Wolfram MathWorld
- ↑ Russ Rowlett Names for Large Numbers Archived 2006-01-10.
- ↑ 大数の名前
- ↑ https://sites.google.com/site/largenumbers/home/appendix/a/ulnl
- ↑ My Large Numbers Coined in 2025 Accessed 2025-01-19.
- ↑ Saibian, Sbiis. Larger numbers in science.
- ↑ List of atoms in the world.
See also[]
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
Indian counting system: Lakh · Crore · Padma · Tallakshana · Ogha · Ababa · Atata · Sogandhika · Uppala · Dvajagravati · Kumuda · Pundarika · Paduma · Kathana · Mahakathana · Asankhyeya · Dvajagranisamani · Vahanaprajnapti · Inga · Kuruta · Sarvanikshepa · Agrasara · Uttaraparamanurajahpravesa · Avatamsaka Sutra · Nirabhilapya nirabhilapya parivarta · Jaghanya Parīta Asaṃkhyāta
Chinese, Japanese and Korean counting system: Wan · Yi · Zhao · Jing · Gai · Zi · Rang · Gou · Jian · Zheng · Zai · Ji · Gougasha · Asougi · Nayuta · Fukashigi · Muryoutaisuu
See also: Template:Googology in Japan