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The dekato-sexticahlah is equal to E100#^#######10 = E100#^#710 in Cascading-E Notation.[1][2] The term was coined by Sbiis Saibian. Dekato-sexticahlah is comparable to Bowers' zettossol.

Etymology

The name of this number is based on prefix "dekato-" and the number "sexticahlah".

Approximations in other notations

Notation Approximation
BEAF $$\{100,100 (6)(6)(6)(6)(6)(6)(6)(6)(6)(6) 2\}$$
Bird's array notation $$\{100,100 [7][7][7][7][7][7][7][7][7][7] 2\}$$
Hyperfactorial array notation $$100![1,[1,10,6],1,2]$$
Fast-growing hierarchy $$f_{\omega^{(\omega^6) 9+(\omega^5) 99+(\omega^4) 99+(\omega^3) 99+(\omega^2) 99+\omega 99+99}}(100)$$
$$\approx f_{\omega^{\omega^610} }(100)$$
Hardy hierarchy $$H_{\omega^{\omega^{(\omega^6) 9+(\omega^5) 99+(\omega^4) 99+(\omega^3) 99+(\omega^2) 99+\omega 99+99}}}(100)$$
$$\approx H_{\omega^{\omega^{\omega^610} }}(100)$$
Slow-growing hierarchy $$g_{\vartheta(\Omega^{(\Omega^6) 9+(\Omega^5) 99+(\Omega^4) 99+(\Omega^3) 99+(\Omega^2) 99+\Omega 99+99})}(100)$$

Sources

1. Saibian, Sbiis. 4.3.5 Cascading-E NumbersOne to Infinity. Retrieved 2015-09-19.
2. Sbiis Saibian's Ultimate Large Numbers List - Part III