Octeicosillion

The octeicosillion is equal to \(10^{3\times 10^{84}+3}\) or \(10^{3\text{ septenvigintillion }3}\).Jonathan Bowers' 4 Tiered -illion Series - Pointless Large Number Stuff It is defined using Sbiis Saibian's generalization of Jonathan Bowers' -illion system.
==Approximations==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow84)\) 	\(1000\uparrow(1+10\uparrow84)\)
Down-arrow notation 	\(1000\downarrow\downarrow29\) 	\(789\downarrow\downarrow30\)
Steinhaus-Moser Notation 	48[3][3] 	49[3][3]
Copy notation 	2[2[85]] 	3[3[85]]
H* function 	H(H(27)) 	H(H(27))
Taro's multivariable Ackermann function	A(3,A(3,279)) 	A(3,A(3,280))
Pound-Star Notation 	#*((1))*(8,0,1,3,3)*6 	#*((1))*(0,5,2,6)*8
BEAF 	{1000,1+{10,84}} 	{1000,1+{10,84}}
Hyper-E notation 	E(3+3E84) 	E(3+3E84)
Bashicu matrix system 	(0)(1)[16] 	(0)(1)[17]
Hyperfactorial array notation 	(60!)! 	(61!)!
Fast-growing hierarchy 	\(f_2(f_2(274))\) 	\(f_2(f_2(275))\)
Hardy hierarchy 	\(H_{\omega^22}(274)\) 	\(H_{\omega^22}(275)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega8+4}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega8+4}3+3}}(10)\)
== Sources ==
Category:Numbers
Category:Illion
Category:Class 3
Category:Greek-based name
Category:Middle class 3
Category:Tier 2 -illion numbers