Binary-googolspeck

A binary-googolspeck (also called octal-gobycrumb) is equal to 445 = 290 = 1,237,940,039,285,380,274,899,124,224. The term was coined by Sbiis Saibian. It is 28 digits long.
It is approximately 1.238 octillion in short scale or 1.238 quadrilliard in long scale.
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1.237\times10^{27}\) 	\(1.238\times10^{27}\)
Arrow notation 	\(2\uparrow90\) 	\(2\uparrow90\)
Steinhaus-Moser Notation 	20[3] 	21[3]
Copy notation 	1[28] 	2[28]
Chained arrow notation 	\(2\rightarrow90\) 	\(2\rightarrow90\)
Taro's multivariable Ackermann function	A(3,87) 	A(3,88)
Pound-Star Notation 	#*(2,2,2,2)*6 	#*(2,5,5)*8
BEAF 	{2,90} 	{2,90}
Bashicu matrix system 	(0)(0)(0)[2435] 	(0)(0)(0)[2436]
Hyperfactorial array notation 	26! 	27!
Fast-growing hierarchy 	\(f_2(83)\) 	\(f_2(84)\)
Hardy hierarchy 	\(H_{\omega^2}(83)\) 	\(H_{\omega^2}(84)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega3+6}}(8)\)	\(g_{\omega^{\omega3+6}}(8)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Numbers by Sbiis Saibian
Category:Powers of 2
Category:Numbers with 7 to 29 digits
Category:Guppy regiment