Sexoctingentillion

A sexoctingentillion is equal to \(10^{2421}\) in the short scale and \(10^{4836}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 806th -illion number.
In the long scale, \(10^{2421}\) is called tresquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2421}\) (exact) 	\(1\times10^{2421}\) (exact)
Arrow notation 	\(10\uparrow 2421\) (exact) 	\(10\uparrow 2421\) (exact)
Steinhaus-Moser Notation 	829[3] 	830[3]
Chained arrow notation 	\(10\rightarrow 2421\) (exact) 	\(10\rightarrow 2421\) (exact)
Taro's multivariable Ackermann function	A(3,8039) 	A(3,8040)
BEAF & Bird's array notation 	{10,2421} (exact) 	{10,2421} (exact)
Hyper-E notation 	E2421 (exact) 	E2421 (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)(829) 	m(1)(830)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8029)\) 	\(f_2(8030)\)
Hardy hierarchy 	\(H_{\omega^2}(8029)\) 	\(H_{\omega^2}(8030)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 4+\omega 2+1}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 4+\omega 2+1}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4836}\) (exact) 	\(1\times10^{4836}\) (exact)
Arrow notation 	\(10\uparrow 4836\) (exact) 	\(10\uparrow 4836\) (exact)
Steinhaus-Moser Notation 	1519[3] 	1520[3]
Chained arrow notation 	\(10\rightarrow 4836\) (exact) 	\(10\rightarrow 4836\) (exact)
Taro's multivariable Ackermann function	A(3,16061) 	A(3,16062)
BEAF & Bird's array notation 	{10,4836} (exact) 	{10,4836} (exact)
Hyper-E notation 	E4836 (exact) 	E4836 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(10)\) 	\(s(1)^3(\lambda x.x+1)(11)\)
m(n) map 	m(1)(1519) 	m(1)(1520)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(16050)\) 	\(f_2(16051)\)
Hardy hierarchy 	\(H_{\omega^2}(16050)\) 	\(H_{\omega^2}(16051)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+\omega^2 8+\omega 3+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+\omega^2 8+\omega 3+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers