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Ecetonoctex is equal to E303#1#1#1#1#1#1#1#2, using Hyper-E notation. It is also equal to 303 decated to 2 or \(303 \uparrow^{8} 2\) in Knuth's arrow notation.[1] The term was coined by Sbiis Saibian. This number belongs to the ginorgol regiment.

## Approximations

Notation Approximation
Arrow notation \(141\uparrow^{8}303\)
Fast-growing hierarchy \(f_9(f_2(995))\)

## Sources

1. Saibian, Sbiis. Hyper-E Numbers. Retrieved 2015-05-04.

Main article: centillion
Eceton series: eceton (= centillion) · ecetonplex · ecetonduplex · ecetontriplex · ecetonquadriplex · ecetonquintiplex
Ecetondex series: ecetondex · ecetondudex · ecetontridex · ecetonquadridex · ecetonquintidex
Ecetonthrex series: ecetonthrex · ecetonduthrex
Ecetontetrex series: ecetontetrex · ecetondutetrex
Ecetonpentex series: ecetonpentex · ecetondupentex
Ecetonhex series: ecetonhex · ecetonduhex
Ecetonheptex series: ecetonheptex · ecetonduheptex
Ecetonoctex series: ecetonoctex · ecetonduoctex
Ecetonennex series: ecetonennex · ecetonduennex
Ecetondecex series: ecetondecex · ecetondudecex
Googol — Greagol
Greagol — Gugold
Throogol — Godgahlah-ex-grand godgahlah