Googology Wiki
Googology Wiki

En-bitillion is equal to H(29) = H(512) = 101,539, where H(x) = 103x+3.[1] It is called duodeciquingentillion in the short scale. The term was coined by SuperJedi224.


Notation Lower bound Upper bound
Scientific notation \(1\times10^{1\,539}\)
Arrow notation \(10\uparrow1\,539\)
Steinhaus-Moser Notation 560[3] 561[3]
Copy notation 9[1539] 10[770]
Chained arrow notation \(10\rightarrow1\,539\)
Taro's multivariable Ackermann function A(3,5109) A(3,5110)
Pound-Star Notation #*((5))*23 #*((6))*23
BEAF & Bird's array notation {10,1539}
Hyper-E notation E1,539
Bashicu matrix system (0)(1)[3] (0)(1)[4]
Hyperfactorial array notation 646! 647!
Fast-growing hierarchy \(f_2(5\,100)\) \(f_2(5\,101)\)
Hardy hierarchy \(H_{\omega^2}(5\,100)\) \(H_{\omega^2}(5\,101)\)
Slow-growing hierarchy \(g_{\omega^{\omega^3+\omega^25+\omega3+9}}(10)\)


See also

Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation

Based on the Faxul

Googovipleccix family

Graham Sequence Numbers

-Illion numbers

"-Illion" numbers by SuperJedi224