Treexillion

Treexillion is equal to \(10^{9\times 10^{3\times 10^{18}}+3}\).Sbiis Saibian, Jonathan Bowers' 4 Tiered -illion Series - Large Numbers It is defined using Sbiis Saibian's generalization of Jonathan Bowers' -illion system.
== Etymology ==
"\( n \)-illion" means \( 10^{3n+3} \), "ex(o)-" means \( n=10^{3\times10^{18}} \). (6th entry in the 3rd tier), and "tre" means "three times", referring "ex". Therefore, "treexillion" means \(10^{3\times(3\times 10^{3\times 10^{18}})+3}\).
(note: Even though the name starts with "tree", it has nothing to do with TREE sequence.)
== Approximations in other notations ==
Notation 	Approximation or exact value
Up-arrow notation 	\(10 \uparrow\uparrow 4\)
Hyperfactorial array notation	\(6!1\)
Fast-growing hierarchy 	\(f_3(6)\)
Hardy hierarchy 	\(H_{\omega^3}(6)\)
Slow-growing hierarchy 	\(g_{\omega^ {\omega^ {\omega^ {\omega+8}} } }(10)\)
== Sources ==
Category:Class 4
Category:Numbers
Category:Illion