Septensexagintasescentillion

A septensexagintasescentillion is equal to \(10^{2004}\) in the short scale and \(10^{4002}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 667th -illion number.
In the long scale, \(10^{2004}\) is called quattuortrigintatrecentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2004}\) (exact) 	\(1\times10^{2004}\) (exact)
Arrow notation 	\(10\uparrow 2004\) (exact) 	\(10\uparrow 2004\) (exact)
Steinhaus-Moser Notation 	703[3] 	704[3]
Chained arrow notation 	\(10\rightarrow 2004\) (exact) 	\(10\rightarrow 2004\) (exact)
Taro's multivariable Ackermann function	A(3,6654) 	A(3,6655)
BEAF & Bird's array notation 	{10,2004} (exact) 	{10,2004} (exact)
Hyper-E notation 	E2004 (exact) 	E2004 (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)(703) 	m(1)(704)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6644)\) 	\(f_2(6645)\)
Hardy hierarchy 	\(H_{\omega^2}(6644)\) 	\(H_{\omega^2}(6645)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+4}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+4}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4002}\) (exact) 	\(1\times10^{4002}\) (exact)
Arrow notation 	\(10\uparrow 4002\) (exact) 	\(10\uparrow 4002\) (exact)
Steinhaus-Moser Notation 	1286[3] 	1287[3]
Chained arrow notation 	\(10\rightarrow 4002\) (exact) 	\(10\rightarrow 4002\) (exact)
Taro's multivariable Ackermann function	A(3,13291) 	A(3,13292)
BEAF & Bird's array notation 	{10,4002} (exact) 	{10,4002} (exact)
Hyper-E notation 	E4002 (exact) 	E4002 (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)(1286) 	m(1)(1287)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(13280)\) 	\(f_2(13281)\)
Hardy hierarchy 	\(H_{\omega^2}(13280)\) 	\(H_{\omega^2}(13281)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+2}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+2}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers