Octal-ogolspeck

An octal-ogolspeck is equal to 870 = 2210 ≒ 1.645505×1063. The term was coined by Sbiis Saibian.
== Decimal expansion ==
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1.645\times10^{63}\) 	\(1.646\times10^{63}\)
Arrow notation 	\(8\uparrow70\) 	\(8\uparrow70\)
Steinhaus-Moser Notation 	39[3] 	40[3]
Copy notation 	1[64] 	2[64]
Taro's multivariable Ackermann function	A(3,207) 	A(3,208)
Pound-Star Notation 	#*(4,9,1,0,5,2)*7 	#*(5,9,1,0,5,2)*7
BEAF 	{8,70} 	{8,70}
Bashicu matrix system 	(0)(0)(0)(0)[8933] 	(0)(0)(0)(0)[8934]
Hyperfactorial array notation 	49! 	50!
Fast-growing hierarchy 	\(f_2(202)\) 	\(f_2(203)\)
Hardy hierarchy 	\(H_{\omega^2}(202)\) 	\(H_{\omega^2}(203)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2+6}}(8)\)	\(g_{\omega^{\omega^2+6}}(8)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Numbers by Sbiis Saibian
Category:Powers of 2
Category:Numbers with 30 to 100 digits
Category:Guppy regiment