Octal-googolspeck

An octal-googolspeck is equal to 890 = 2270 ≒ 1.897138×1081. The term was coined by Sbiis Saibian.
== Decimal expansion ==
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1.897\times10^{81}\) 	\(1.898\times10^{81}\)
Arrow notation 	\(2↑270\), \(4↑135\), \(8\uparrow90\) 	\(2↑270\), \(4↑135\), \(8\uparrow90\)
Steinhaus-Moser Notation 	48[3] 	49[3]
Copy notation 	1[82] 	2[82]
Chained arrow notation 	\(2\rightarrow270\), \(4\rightarrow135\), \(8\rightarrow90\)	\(2\rightarrow270\), \(4\rightarrow135\), \(8\rightarrow90\)
Taro's multivariable Ackermann function	A(3,267) 	A(3,268)
Pound-Star Notation 	#*(2,8,4,4,3,1,2)*7 	#*(3,8,4,4,3,1,2)*7
PlantStar's Debut Notation 	[1,1] 	[49]
BEAF 	{2,270}, {4,135}, {8,90} 	{2,270}, {4,135}, {8,90}
Bashicu matrix system 	(0)(0)(0)(0)(0)[346] 	(0)(0)(0)(0)(0)[347]
Hyperfactorial array notation 	59! 	60!
Bird's array notation 	{2,270}, {4,135}, {8,90} 	{2,270}, {4,135}, {8,90}
Strong array notation 	s(2,270), s(4,135), s(8,90) 	s(2,270), s(4,135), s(8,90)
Fast-growing hierarchy 	\(f_2(261)\) 	\(f_2(262)\)
Hardy hierarchy 	\(H_{\omega^2}(261)\) 	\(H_{\omega^2}(262)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2+\omega3+2}}(8)\) 	\(g_{\omega^{\omega^2+\omega3+2}}(8)\)
== 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