Octosexagintaquadringentillion

An octosexagintaquadringentillion is equal to \(10^{1407}\) in the short scale and \(10^{2808}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 468th -illion number.
In the long scale, \(10^{1407}\) is called quattuortrigintaducentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1407}\) (exact) 	\(1\times10^{1407}\) (exact)
Arrow notation 	\(10\uparrow 1407\) (exact) 	\(10\uparrow 1407\) (exact)
Steinhaus-Moser Notation 	518[3] 	519[3]
Chained arrow notation 	\(10\rightarrow 1407\) (exact) 	\(10\rightarrow 1407\) (exact)
Taro's multivariable Ackermann function	A(3,4670) 	A(3,4671)
BEAF & Bird's array notation 	{10,1407} (exact) 	{10,1407} (exact)
Hyper-E notation 	E1407 (exact) 	E1407 (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)(518) 	m(1)(519)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(4661)\) 	\(f_2(4662)\)
Hardy hierarchy 	\(H_{\omega^2}(4661)\) 	\(H_{\omega^2}(4662)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 4+7}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 4+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2808}\) (exact) 	\(1\times10^{2808}\) (exact)
Arrow notation 	\(10\uparrow 2808\) (exact) 	\(10\uparrow 2808\) (exact)
Steinhaus-Moser Notation 	943[3] 	944[3]
Chained arrow notation 	\(10\rightarrow 2808\) (exact) 	\(10\rightarrow 2808\) (exact)
Taro's multivariable Ackermann function	A(3,9324) 	A(3,9325)
BEAF & Bird's array notation 	{10,2808} (exact) 	{10,2808} (exact)
Hyper-E notation 	E2808 (exact) 	E2808 (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)(943) 	m(1)(944)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(9314)\) 	\(f_2(9315)\)
Hardy hierarchy 	\(H_{\omega^2}(9314)\) 	\(H_{\omega^2}(9315)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 8+8}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 8+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers