Octosexagintaducentillion

An octosexagintaducentillion is equal to \(10^{807}\) in the short scale and \(10^{1608}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 268th -illion number.
In the long scale, \(10^{807}\) is called quattuortrigintacentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{807}\) (exact) 	\(1\times10^{807}\) (exact)
Arrow notation 	\(10\uparrow 807\) (exact) 	\(10\uparrow 807\) (exact)
Steinhaus-Moser Notation 	321[3] 	322[3]
Chained arrow notation 	\(10\rightarrow 807\) (exact) 	\(10\rightarrow 807\) (exact)
Taro's multivariable Ackermann function	A(3,2677) 	A(3,2678)
BEAF & Bird's array notation 	{10,807} (exact) 	{10,807} (exact)
Hyper-E notation 	E807 (exact) 	E807 (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)(321) 	m(1)(322)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[37] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[38]
Fast-growing hierarchy 	\(f_2(2669)\) 	\(f_2(2670)\)
Hardy hierarchy 	\(H_{\omega^2}(2669)\) 	\(H_{\omega^2}(2670)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 8+7}}(10)\) (exact)	\(g_{\omega^{\omega^2 8+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1608}\) (exact) 	\(1\times10^{1608}\) (exact)
Arrow notation 	\(10\uparrow 1608\) (exact) 	\(10\uparrow 1608\) (exact)
Steinhaus-Moser Notation 	581[3] 	582[3]
Chained arrow notation 	\(10\rightarrow 1608\) (exact) 	\(10\rightarrow 1608\) (exact)
Taro's multivariable Ackermann function	A(3,5338) 	A(3,5339)
BEAF & Bird's array notation 	{10,1608} (exact) 	{10,1608} (exact)
Hyper-E notation 	E1608 (exact) 	E1608 (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)(581) 	m(1)(582)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(5329)\) 	\(f_2(5330)\)
Hardy hierarchy 	\(H_{\omega^2}(5329)\) 	\(H_{\omega^2}(5330)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 6+8}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 6+8}}(10)\) (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