Googology Wiki
Googology Wiki

In X-Sequence Hyper-Exponential Notation, the Hyperazetathoth Terrubilion is equal to 100{(X>>X)>X}100[1]. It's the largest googolism described using this notation. The term was coined by SuperJedi224.

It's comparable to Saibian's Tethriterated-tethracross.

Approximations in other notations

Notation Approximation
Bird's Array Notation \(\{100,100[1\backslash 1 \backslash 1,2]2\}\)
Extended Cascading-E notation \(\textrm E100(\#\text{^^}\#\#)\text{^^}\#>\#100\)
Fast-growing hierarchy \(f_{\varepsilon_{\zeta_0+\omega}}(100)\)
Hardy hierarchy \(H_{\varepsilon_{\zeta_0+\omega}}(100)\)

See also

Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation

Based on the Faxul

Googovipleccix family

Graham Sequence Numbers

-Illion numbers