Seducentillion

A seducentillion is equal to \(10^{621}\) in the short scale and \(10^{1236}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 206th -illion number.
In the long scale, \(10^{621}\) is called trescentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{621}\) (exact) 	\(1\times10^{621}\) (exact)
Arrow notation 	\(10\uparrow 621\) (exact) 	\(10\uparrow 621\) (exact)
Steinhaus-Moser Notation 	257[3] 	258[3]
Chained arrow notation 	\(10\rightarrow 621\) (exact) 	\(10\rightarrow 621\) (exact)
Taro's multivariable Ackermann function	A(3,2059) 	A(3,2060)
BEAF & Bird's array notation 	{10,621} (exact) 	{10,621} (exact)
Hyper-E notation 	E621 (exact) 	E621 (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)(257) 	m(1)(258)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[16] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[17]
Fast-growing hierarchy 	\(f_2(2051)\) 	\(f_2(2052)\)
Hardy hierarchy 	\(H_{\omega^2}(2051)\) 	\(H_{\omega^2}(2052)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 6+\omega 2+1}}(10)\) (exact)	\(g_{\omega^{\omega^2 6+\omega 2+1}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1236}\) (exact) 	\(1\times10^{1236}\) (exact)
Arrow notation 	\(10\uparrow 1236\) (exact) 	\(10\uparrow 1236\) (exact)
Steinhaus-Moser Notation 	463[3] 	464[3]
Chained arrow notation 	\(10\rightarrow 1236\) (exact) 	\(10\rightarrow 1236\) (exact)
Taro's multivariable Ackermann function	A(3,4102) 	A(3,4103)
BEAF & Bird's array notation 	{10,1236} (exact) 	{10,1236} (exact)
Hyper-E notation 	E1236 (exact) 	E1236 (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)(463) 	m(1)(464)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(4093)\) 	\(f_2(4094)\)
Hardy hierarchy 	\(H_{\omega^2}(4093)\) 	\(H_{\omega^2}(4094)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 2+\omega 3+6}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 2+\omega 3+6}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers