Tetreicosillion

Tetreicosillion is equal to \(10^{3\times 10^{72}+3}\) or \(10^{3\text{ trevigintillion }3}\).1.8. Extensions to the -illions II: Jonathan Bowers' -illions - Pointless Large Number Stuff
SuperJedi224 coined trito-yoctillion for this number, and is equal to H(1072) using H* function.-Illions - Almost Infinite (retrieved 2021-05-02 01:14 UTC)
==Approximations==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow72)\) 	\(1000\uparrow(1+10\uparrow72)\)
Down-arrow notation 	\(1000\downarrow\downarrow25\) 	\(760\downarrow\downarrow26\)
Steinhaus-Moser Notation 	43[3][3] 	44[3][3]
Copy notation 	2[2[73]] 	3[3[73]]
H* function 	H(H(23)) 	H(H(23))
Taro's multivariable Ackermann function	A(3,A(3,239)) 	A(3,A(3,240))
Pound-Star Notation 	#*((1))*(10,4)*17 	#*((1))*(5,4,6,1)*8
BEAF 	{1000,1+{10,72}} 	{1000,1+{10,72}}
Hyper-E notation 	E(3+3E72) 	E(3+3E72)
Bashicu matrix system 	(0)(1)[15] 	(0)(1)[16]
Hyperfactorial array notation 	(53!)! 	(54!)!
Fast-growing hierarchy 	\(f_2(f_2(234))\) 	\(f_2(f_2(235))\)
Hardy hierarchy 	\(H_{\omega^22}(234)\) 	\(H_{\omega^22}(235)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega7+2}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega7+2}3+3}}(10)\)
== Sources ==
Category:Illion
Category:Numbers
Category:Class 3
Category:Greek-based name
Category:Middle class 3
Category:Tier 2 -illion numbers