Vigesimal-ogol

A vigesimal-ogol is equal to 2080 ≒ 1.208926×10104 or approximately 120.9 trestrigintillion in short scale. The term was coined by Sbiis Saibian. It is 105 digits long.
== Decimal expansion ==
== Approximations ==
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1.208\times10^{104}\) 	\(1.209\times10^{104}\)
Arrow notation 	\(20\uparrow80\) 	\(20\uparrow80\)
Steinhaus-Moser Notation 	58[3] 	59[3]
Copy notation 	1[105] 	2[105]
Chained arrow notation 	\(20→80\) 	\(20→80\)
Taro's multivariable Ackermann function	A(3,342) 	A(3,343)
Pound-Star Notation 	#*(8,9,2,9,1,3,3)*9 	#*(11,4,0,9,1,2)*12
BEAF 	{20,80} 	{20,80}
Bashicu matrix system 	(0)(0)(0)(0)(0)[1788] 	(0)(0)(0)(0)(0)[1789]
Bird's array notation 	{20,80} 	{20,80}
Hyperfactorial array notation 	72! 	73!
Strong array notation 	s(20,80) 	s(20,80)
Fast-growing hierarchy 	\(f_2(337)\) 	\(f_2(338)\)
Hardy hierarchy 	\(H_{\omega^2}(337)\) 	\(H_{\omega^2}(338)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega4}}(20)\)	\(g_{\omega^{\omega4}}(20)\)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Numbers by Sbiis Saibian
Category:Numbers with 101 to 999 digits
Category:Powers of 20
Category:Guppy regiment