Octosexagintasescentillion

An octosexagintasescentillion is equal to \(10^{2007}\) in the short scale and \(10^{4008}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 668th -illion number.
In the long scale, \(10^{2007}\) is called quattuortrigintatrecentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2007}\) (exact) 	\(1\times10^{2007}\) (exact)
Arrow notation 	\(10\uparrow 2007\) (exact) 	\(10\uparrow 2007\) (exact)
Steinhaus-Moser Notation 	704[3] 	705[3]
Chained arrow notation 	\(10\rightarrow 2007\) (exact) 	\(10\rightarrow 2007\) (exact)
Taro's multivariable Ackermann function	A(3,6664) 	A(3,6665)
BEAF & Bird's array notation 	{10,2007} (exact) 	{10,2007} (exact)
Hyper-E notation 	E2007 (exact) 	E2007 (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)(704) 	m(1)(705)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6654)\) 	\(f_2(6655)\)
Hardy hierarchy 	\(H_{\omega^2}(6654)\) 	\(H_{\omega^2}(6655)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+7}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4008}\) (exact) 	\(1\times10^{4008}\) (exact)
Arrow notation 	\(10\uparrow 4008\) (exact) 	\(10\uparrow 4008\) (exact)
Steinhaus-Moser Notation 	1288[3] 	1289[3]
Chained arrow notation 	\(10\rightarrow 4008\) (exact) 	\(10\rightarrow 4008\) (exact)
Taro's multivariable Ackermann function	A(3,13311) 	A(3,13312)
BEAF & Bird's array notation 	{10,4008} (exact) 	{10,4008} (exact)
Hyper-E notation 	E4008 (exact) 	E4008 (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)(1288) 	m(1)(1289)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(13300)\) 	\(f_2(13301)\)
Hardy hierarchy 	\(H_{\omega^2}(13300)\) 	\(H_{\omega^2}(13301)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+8}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers