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A trigintallion is equal to $$10^{93}$$ in the short scale, or $$10^{180}$$ in the long scale by Conway-Wechsler system[1][2][3][4]. It is called trigintillion by Rowlett's naming system.[5]

In the long scale, 1093 is called quindecilliard.

## List of prefixed numbers derived from trigintillion

Name Short scale Long scale
untrigintillion 1096 10186
duotrigintillion 1099 10192
tretrigintillion 10102 10198
quattuortrigintillion 10105 10204
quintrigintillion 10108 10210
sextrigintillion 10111 10216
septentrigintillion 10114 10222
octotrigintillion 10117 10228
novemtrigintillion 10120 10234

## Trivia

The book Googolplex Written Out, by Wolfgang H. Nitsche, has 10 trigintillion volumes.[6]

## Approximations

For short scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{93}$$
Arrow notation $$10\uparrow93$$
Steinhaus-Moser Notation 53[3] 54[3]
Copy notation 9[93] 10[47]
Taro's multivariable Ackermann function A(3,305) A(3,306)
Pound-Star Notation #*(9,4,7,0,5,7,2)*8 #*(10,4,7,0,5,7,2)*8
BEAF {10,93}
Hyper-E notation E93
Bashicu matrix system (0)(0)(0)(0)(0)[805] (0)(0)(0)(0)(0)[806]
Hyperfactorial array notation 66! 67!
Fast-growing hierarchy $$f_2(300)$$ $$f_2(301)$$
Hardy hierarchy $$H_{\omega^2}(300)$$ $$H_{\omega^2}(301)$$
Slow-growing hierarchy $$g_{\omega^{\omega9+3}}(10)$$

For long scale:

Notation Lower bound Upper bound
Scientific notation $$1\times10^{180}$$
Arrow notation $$10\uparrow180$$
Steinhaus-Moser Notation 91[3] 92[3]
Copy notation 9[180] 1[181]
Taro's multivariable Ackermann function A(3,594) A(3,595)
Pound-Star Notation #*((56))*9 #*((57))*9
BEAF {10,180}
Hyper-E notation E180
Bashicu matrix system (0)(0)(0)(0)(0)(0)[649] (0)(0)(0)(0)(0)(0)[650]
Hyperfactorial array notation 110! 111!
Fast-growing hierarchy $$f_2(588)$$ $$f_2(589)$$
Hardy hierarchy $$H_{\omega^2}(588)$$ $$H_{\omega^2}(589)$$
Slow-growing hierarchy $$g_{\omega^{\omega^2+\omega8}}(10)$$