Octooctogintaducentillion

An octooctogintaducentillion is equal to \(10^{867}\) in the short scale and \(10^{1728}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 288th -illion number.
In the long scale, \(10^{867}\) is called quattuorquadragintacentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{867}\) (exact) 	\(1\times10^{867}\) (exact)
Arrow notation 	\(10\uparrow 867\) (exact) 	\(10\uparrow 867\) (exact)
Steinhaus-Moser Notation 	342[3] 	343[3]
Chained arrow notation 	\(10\rightarrow 867\) (exact) 	\(10\rightarrow 867\) (exact)
Taro's multivariable Ackermann function	A(3,2877) 	A(3,2878)
BEAF & Bird's array notation 	{10,867} (exact) 	{10,867} (exact)
Hyper-E notation 	E867 (exact) 	E867 (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)(342) 	m(1)(343)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[49] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[50]
Fast-growing hierarchy 	\(f_2(2868)\) 	\(f_2(2869)\)
Hardy hierarchy 	\(H_{\omega^2}(2868)\) 	\(H_{\omega^2}(2869)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 8+\omega 6+7}}(10)\) (exact)	\(g_{\omega^{\omega^2 8+\omega 6+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1728}\) (exact) 	\(1\times10^{1728}\) (exact)
Arrow notation 	\(10\uparrow 1728\) (exact) 	\(10\uparrow 1728\) (exact)
Steinhaus-Moser Notation 	618[3] 	619[3]
Chained arrow notation 	\(10\rightarrow 1728\) (exact) 	\(10\rightarrow 1728\) (exact)
Taro's multivariable Ackermann function	A(3,5737) 	A(3,5738)
BEAF & Bird's array notation 	{10,1728} (exact) 	{10,1728} (exact)
Hyper-E notation 	E1728 (exact) 	E1728 (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)(618) 	m(1)(619)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(5727)\) 	\(f_2(5728)\)
Hardy hierarchy 	\(H_{\omega^2}(5727)\) 	\(H_{\omega^2}(5728)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 7+\omega 2+8}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 7+\omega 2+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers