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An unnonagintillion is equal to 10276 in America, or 10546 in France and Germany.[1]

In the long scale which is commonly used in France and Germany, 10276 is called sexquadragintillion.

## Contents

### Approximations

For short scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{276}$$
Arrow notation $$10\uparrow276$$
Steinhaus-Moser Notation 130[3] 131[3]
Copy notation 9[276] 1[277]
Taro's multivariable Ackermann function A(3,913) A(3,914)
Pound-Star Notation #*((16))*11 #*((17))*11
BEAF {10,276}
Hyper-E notation E276
Bashicu matrix system (0)(0)(0)(0)(0)(0)[20535] (0)(0)(0)(0)(0)(0)[20536]
Hyperfactorial array notation 156! 157!
Fast-growing hierarchy $$f_2(907)$$ $$f_2(908)$$
Hardy hierarchy $$H_{\omega^2}(907)$$ $$H_{\omega^2}(908)$$
Slow-growing hierarchy $$g_{\omega^{\omega^22+\omega7+6}}(10)$$

For long scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{546}$$
Arrow notation $$10\uparrow546$$
Steinhaus-Moser Notation 231[3] 232[3]
Copy notation 9[546] 1[547]
Taro's multivariable Ackermann function A(3,1810) A(3,1811)
Pound-Star Notation #*((2117))*14 #*((2118))*14
BEAF {10,546}
Hyper-E notation E546
Bashicu matrix system (0)(0)(0)(0)(0)(0)(0)[18434] (0)(0)(0)(0)(0)(0)(0)[18435]
Hyperfactorial array notation 272! 273!
Fast-growing hierarchy $$f_2(1802)$$ $$f_2(1803)$$
Hardy hierarchy $$H_{\omega^2}(1802)$$ $$H_{\omega^2}(1803)$$
Slow-growing hierarchy $$g_{\omega^{\omega^25+\omega4+6}}(10)$$

### List of prefixed numbers derived from nonagintillion

Name Short scale Long scale
unnonagintillion 10276 10546
duononagintillion 10279 10552
trenonagintillion 10282 10558
quattuornonagintillion 10285 10564
quinnonagintillion 10288 10570
sexnonagintillion 10291 10576
septennonagintillion 10294 10582
octononagintillion 10297 10588
novemnonagintillion 10300 10594