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An unsexagintillion is equal to 10186 in the short scale, or 10366 in the long scale by Conway and Guy's naming system.[1][2][3][4]

In the long scale which is commonly used in France and Germany, 10186 is called untrigintillion.

Approximations[]

For short scale:

Notation Lower bound Upper bound
Scientific notation \(1\times10^{186}\)
Arrow notation \(10\uparrow186\)
Steinhaus-Moser Notation 94[3] 95[3]
Copy notation 9[186] 1[187]
Taro's multivariable Ackermann function A(3,614) A(3,615)
Pound-Star Notation #*((126))*9 #*((127))*9
BEAF {10,186}
Hyper-E notation E186
Bashicu matrix system (0)(0)(0)(0)(0)(0)[805] (0)(0)(0)(0)(0)(0)[806]
Hyperfactorial array notation 113! 114!
Fast-growing hierarchy \(f_2(608)\) \(f_2(609)\)
Hardy hierarchy \(H_{\omega^2}(608)\) \(H_{\omega^2}(609)\)
Slow-growing hierarchy \(g_{\omega^{\omega^2+\omega8+6}}(10)\)

For long scale:

Notation Lower bound Upper bound
Scientific notation \(1\times10^{366}\)
Arrow notation \(10\uparrow366\)
Steinhaus-Moser Notation 165[3] 166[3]
Copy notation 9[366] 1[367]
Taro's multivariable Ackermann function A(3,1212) A(3,1213)
Pound-Star Notation #*((232))*12 #*((233))*12
BEAF {10,366}
Hyper-E notation E366
Bashicu matrix system (0)(0)(0)(0)(0)(0)(0)[723] (0)(0)(0)(0)(0)(0)(0)[724]
Hyperfactorial array notation 196! 197!
Fast-growing hierarchy \(f_2(1205)\) \(f_2(1206)\)
Hardy hierarchy \(H_{\omega^2}(1205)\) \(H_{\omega^2}(1206)\)
Slow-growing hierarchy \(g_{\omega^{\omega^23+\omega6+6}}(10)\)

List of prefixed numbers derived from sexagintillion[]

Name Short scale Long scale
unsexagintillion 10186 10366
duosexagintillion 10189 10372
tresexagintillion 10192 10378
quattuorsexagintillion 10195 10384
quinsexagintillion 10198 10390
sesexagintillion 10201 10396
septensexagintillion 10204 10402
octosexagintillion 10207 10408
novensexagintillion 10210 10414

Sources[]

  1. Steve Olsen Big-Ass Numbers Retrieved 2023-02-05
  2. Conway and Guy. (1995) "The book of Numbers" Copernicus
  3. Robert Munafo The Conway-Wechsler System Retrieved 2023-02-05
  4. Fish Conway's zillion numbers. Retrieved 2023-02-05.

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
1,000–1024: 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
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