Quindeciducentillion

A quindeciducentillion is equal to \(10^{648}\) in the short scale and \(10^{1290}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 215th -illion number.
In the long scale, \(10^{648}\) is called octocentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{648}\) (exact) 	\(1\times10^{648}\) (exact)
Arrow notation 	\(10\uparrow 648\) (exact) 	\(10\uparrow 648\) (exact)
Steinhaus-Moser Notation 	267[3] 	268[3]
Chained arrow notation 	\(10\rightarrow 648\) (exact) 	\(10\rightarrow 648\) (exact)
Taro's multivariable Ackermann function	A(3,2149) 	A(3,2150)
BEAF & Bird's array notation 	{10,648} (exact) 	{10,648} (exact)
Hyper-E notation 	E648 (exact) 	E648 (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)(267) 	m(1)(268)
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[18] 	(0)(0)(0)(0)(0)(0)(0)(0)(0)[19]
Fast-growing hierarchy 	\(f_2(2141)\) 	\(f_2(2142)\)
Hardy hierarchy 	\(H_{\omega^2}(2141)\) 	\(H_{\omega^2}(2142)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2 6+\omega 4+8}}(10)\) (exact)	\(g_{\omega^{\omega^2 6+\omega 4+8}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1290}\) (exact) 	\(1\times10^{1290}\) (exact)
Arrow notation 	\(10\uparrow 1290\) (exact) 	\(10\uparrow 1290\) (exact)
Steinhaus-Moser Notation 	480[3] 	481[3]
Chained arrow notation 	\(10\rightarrow 1290\) (exact) 	\(10\rightarrow 1290\) (exact)
Taro's multivariable Ackermann function	A(3,4282) 	A(3,4283)
BEAF & Bird's array notation 	{10,1290} (exact) 	{10,1290} (exact)
Hyper-E notation 	E1290 (exact) 	E1290 (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)(480) 	m(1)(481)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(4273)\) 	\(f_2(4274)\)
Hardy hierarchy 	\(H_{\omega^2}(4273)\) 	\(H_{\omega^2}(4274)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 2+\omega 9}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 2+\omega 9}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 101 to 999 digits
Category:Tier 1 -illion numbers