Isosto-quarticahlah

The isosto-quarticahlah is equal to E100#^#####20 in Cascading-E Notation.Sbiis Saibian's Ultimate Large Numbers List - Part III The term was coined by Sbiis Saibian.
== Etymology ==
The name of this number is based on prefixes "icosa-" (meaning twenty) and the number "quarticahlah".
== Approximations in other notations ==
Notation 	Approximation
BEAF 	\(\{100,100 \underbrace{(4)(4)\cdots(4)(4)}_{20} 2\}\)
Bird's array notation 	\(\{100,100 \underbrace{[5][5]\cdots[5][5]}_{20} 2\}\)
Hyperfactorial array notation	\(100![1,[1,20,5],1,2]\)
Fast-growing hierarchy 	\(f_{\omega^{(\omega^4) 19+(\omega^3) 99+(\omega^2) 99+\omega 99+99}}(100)\)
Hardy hierarchy 	\(H_{\omega^{\omega^{(\omega^4) 19+(\omega^3) 99+(\omega^2) 99+\omega 99+99}}}(100)\)
Slow-growing hierarchy 	\(g_{\vartheta(\Omega^{(\Omega^4) 19+(\Omega^3) 99+(\Omega^2) 99+\Omega 99+99})}(100)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Sbiis Saibian
Category:Cascading-E numbers
Category:Exponentiated polynomial omega level
Category:Quarticahlah series