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Ecetonhex is equal to E303#1#1#1#1#1#2, using Hyper-E notation.[1] The term was coined by Sbiis Saibian. This number belongs to the gulgol regiment.

## Approximations

Notation Approximation
Arrow notation $$141↑^{6}(\text{centillon}+1)$$
BEAF $$\{ 141,\text{centillion}+1,6 \}$$
Bird's array notation $$\{ 141,\text{centillion}+1,6 \}$$
Chained arrow notation $$141 \rightarrow (\text{centillion}+1) \rightarrow 6$$
Fast-growing hierarchy $$f_7(f_2(996))$$
Hardy hierarchy $$H_{\omega^7+\omega^2}(996)$$
Slow-growing hierarchy $$g_{\varphi(5,{\omega^{\omega}})}(141)$$

## Sources

1. Saibian, Sbiis. Hyper-E Numbers. Retrieved 2015-04-17.

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