Sescentillion

A sescentillion is equal to \(10^{1803}\) in the short scale and \(10^{3600}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus and in Jonathan Bowers systemIllion Numbers by Jonathan Bowers as it is the 600th -illion number.
In the long scale, \(10^{1803}\) is called trecentilliard.
== Decimal expansion ==
Written out in decimal form sescentillion (in the short scale) is:
In long scale:
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1803}\) (exact) 	\(1\times10^{1803}\) (exact)
Arrow notation 	\(10\uparrow 1803\) (exact) 	\(10\uparrow 1803\) (exact)
Steinhaus-Moser Notation 	642[3] 	643[3]
Chained arrow notation 	\(10\rightarrow 1803\) (exact) 	\(10\rightarrow 1803\) (exact)
Taro's multivariable Ackermann function	A(3,5986) 	A(3,5987)
BEAF & Bird's array notation 	{10,1803} (exact) 	{10,1803} (exact)
Hyper-E notation 	E1803 (exact) 	E1803 (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)(642) 	m(1)(643)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Copy notation 	9[1803] 	10[902]
Pound-Star Notation 	#*((954))*24 	#*((955))*24
Hyperfactorial array notation 	739! 	740!
Fast-growing hierarchy 	\(f_2(5976)\) 	\(f_2(5977)\)
Hardy hierarchy 	\(H_{\omega^2}(5976)\) 	\(H_{\omega^2}(5977)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 8+3}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 8+3}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3600}\) (exact) 	\(1\times10^{3600}\) (exact)
Arrow notation 	\(10\uparrow 3600\) (exact) 	\(10\uparrow 3600\) (exact)
Steinhaus-Moser Notation 	1172[3] 	1173[3]
Chained arrow notation 	\(10\rightarrow 3600\) (exact) 	\(10\rightarrow 3600\) (exact)
Taro's multivariable Ackermann function	A(3,11955) 	A(3,11956)
BEAF & Bird's array notation 	{10,3600} (exact) 	{10,3600} (exact)
Hyper-E notation 	E3600 (exact) 	E3600 (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)(1172) 	m(1)(1173)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Copy notation 	9[3600] 	1[3601]
Pound-Star Notation 	#*((45))*33 	#*((46))*33
Hyperfactorial array notation 	1336! 	1337!
Fast-growing hierarchy 	\(f_2(11945)\) 	\(f_2(11946)\)
Hardy hierarchy 	\(H_{\omega^2}(11945)\) 	\(H_{\omega^2}(11946)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2 6}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2 6}}(10)\) (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