Sestrecentillion

A sestrecentillion is equal to \(10^{921}\) in the short scale and \(10^{1836}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 306th -illion number.
In the long scale, \(10^{921}\) is called tresquinquagintacentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{921}\) (exact) 	\(1\times10^{921}\) (exact)
Arrow notation 	\(10\uparrow 921\) (exact) 	\(10\uparrow 921\) (exact)
Steinhaus-Moser Notation 	360[3] 	361[3]
Chained arrow notation 	\(10\rightarrow 921\) (exact) 	\(10\rightarrow 921\) (exact)
Taro's multivariable Ackermann function	A(3,3056) 	A(3,3057)
BEAF & Bird's array notation 	{10,921} (exact) 	{10,921} (exact)
Hyper-E notation 	E921 (exact) 	E921 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(8)\) 	\(s(1)^3(\lambda x.x+1)(9)\)
m(n) map 	m(1)(360) 	m(1)(361)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[62] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[63]
Fast-growing hierarchy 	\(f_2(3047)\) 	\(f_2(3048)\)
Hardy hierarchy 	\(H_{\omega^2}(3047)\) 	\(H_{\omega^2}(3048)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 9+\omega 2+1}}(10)\) (exact)	\(g_{\omega^{\omega^2 9+\omega 2+1}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1836}\) (exact) 	\(1\times10^{1836}\) (exact)
Arrow notation 	\(10\uparrow 1836\) (exact) 	\(10\uparrow 1836\) (exact)
Steinhaus-Moser Notation 	652[3] 	653[3]
Chained arrow notation 	\(10\rightarrow 1836\) (exact) 	\(10\rightarrow 1836\) (exact)
Taro's multivariable Ackermann function	A(3,6096) 	A(3,6097)
BEAF & Bird's array notation 	{10,1836} (exact) 	{10,1836} (exact)
Hyper-E notation 	E1836 (exact) 	E1836 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(9)\) 	\(s(1)^3(\lambda x.x+1)(10)\)
m(n) map 	m(1)(652) 	m(1)(653)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6086)\) 	\(f_2(6087)\)
Hardy hierarchy 	\(H_{\omega^2}(6086)\) 	\(H_{\omega^2}(6087)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 8+\omega 3+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 8+\omega 3+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers