Hyper-pen-exitillion is equal to H(20205) = H(203200000), where H(x) equals 103x+3.[1] The name was coined by SuperJedi224.

Approximations

Notation Lower bound Upper bound
Arrow notation \(1000\uparrow(1+20\uparrow20\uparrow5)\)
BEAF {1000,1+{20,{20,5}}}
Hyper-E notation E(3+3E[20]5#2)

Sources

Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation

Based on the Faxul

Googovipleccix family

Graham Sequence Numbers

-Illion numbers

"-Illion" numbers by SuperJedi224

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