Octogintasescentillion

An octogintasescentillion is equal to \(10^{2043}\) in the short scale and \(10^{4080}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 680th -illion number.
In the long scale, \(10^{2043}\) is called quadragintatrecentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2043}\) (exact) 	\(1\times10^{2043}\) (exact)
Arrow notation 	\(10\uparrow 2043\) (exact) 	\(10\uparrow 2043\) (exact)
Steinhaus-Moser Notation 	715[3] 	716[3]
Chained arrow notation 	\(10\rightarrow 2043\) (exact) 	\(10\rightarrow 2043\) (exact)
Taro's multivariable Ackermann function	A(3,6783) 	A(3,6784)
BEAF & Bird's array notation 	{10,2043} (exact) 	{10,2043} (exact)
Hyper-E notation 	E2043 (exact) 	E2043 (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)(715) 	m(1)(716)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6773)\) 	\(f_2(6774)\)
Hardy hierarchy 	\(H_{\omega^2}(6773)\) 	\(H_{\omega^2}(6774)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega 4+3}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega 4+3}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4080}\) (exact) 	\(1\times10^{4080}\) (exact)
Arrow notation 	\(10\uparrow 4080\) (exact) 	\(10\uparrow 4080\) (exact)
Steinhaus-Moser Notation 	1308[3] 	1309[3]
Chained arrow notation 	\(10\rightarrow 4080\) (exact) 	\(10\rightarrow 4080\) (exact)
Taro's multivariable Ackermann function	A(3,13550) 	A(3,13551)
BEAF & Bird's array notation 	{10,4080} (exact) 	{10,4080} (exact)
Hyper-E notation 	E4080 (exact) 	E4080 (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)(1308) 	m(1)(1309)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(13539)\) 	\(f_2(13540)\)
Hardy hierarchy 	\(H_{\omega^2}(13539)\) 	\(H_{\omega^2}(13540)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+\omega 8}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+\omega 8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers