Duoquadragintillion

A duoquadragintillion is equal to 10129 in the short scale, or \(10^{252}\) in the long scale by Conway and Guy's naming system.Conway and Guy. (1995) "The book of Numbers" CopernicusSteve Olsen, Big-Ass NumbersThe Conway-Wechsler System
Sbiis Saibian says that Jonathan Bowers coined doequadragintillion for this number.
In the long scale which is commonly used in France and Germany, \(10^{129}\) is called unvigintilliard.
== Approximations ==
For short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{129}\) 	\(1\times10^{129}\)
Arrow notation 	\(10\uparrow129\) 	\(10\uparrow129\)
Steinhaus-Moser Notation 	69[3] 	70[3]
Copy notation 	9[129] 	10[65]
Taro's multivariable Ackermann function	A(3,425) 	A(3,426)
Pound-Star Notation 	#*(3,10,8,1,5,9,8,2)*9 	#*(4,10,8,1,5,9,8,2)*9
BEAF 	{10,129} 	{10,129}
Hyper-E notation 	E129 	E129
Bashicu matrix system 	(0)(0)(0)(0)(0)[10746] 	(0)(0)(0)(0)(0)[10747]
Hyperfactorial array notation 	85! 	86!
Fast-growing hierarchy 	\(f_2(419)\) 	\(f_2(420)\)
Hardy hierarchy 	\(H_{\omega^2}(419)\) 	\(H_{\omega^2}(420)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^2+\omega2+9}}(10)\)	\(g_{\omega^{\omega^2+\omega2+9}}(10)\)
For long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{252}\) 	\(1\times10^{252}\)
Arrow notation 	\(10\uparrow252\) 	\(10\uparrow252\)
Steinhaus-Moser Notation 	120[3] 	121[3]
Copy notation 	9[252] 	1[253]
Taro's multivariable Ackermann function	A(3,834) 	A(3,835)
Pound-Star Notation 	#*((801))*10 	#*((802))*10
BEAF 	{10,252} 	{10,252}
Hyper-E notation 	E252 	E252
Bashicu matrix system 	(0)(0)(0)(0)(0)(0)[8659] 	(0)(0)(0)(0)(0)(0)[8660]
Hyperfactorial array notation 	145! 	146!
Fast-growing hierarchy 	\(f_2(827)\) 	\(f_2(828)\)
Hardy hierarchy 	\(H_{\omega^2}(827)\) 	\(H_{\omega^2}(828)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^22+\omega5+2}}(10)\)	\(g_{\omega^{\omega^22+\omega5+2}}(10)\)
==List of prefixed numbers derived from quadragintillion==
Name 	Short scale	Long scale
unquadragintillion 	10126 	10246
duoquadragintillion 	10129 	10252
tresquadragintillion 	10132 	10258
quattuorquadragintillion	10135 	10264
quinquadragintillion 	10138 	10270
sesquadragintillion 	10141 	10276
septenquadragintillion 	10144 	10282
octoquadragintillion 	10147 	10288
novenquadragintillion 	10150 	10294
== Sources ==
==See also==
Category:Numbers
Category:Illion
Category:Class 2
Category:Quadragintillion
Category:Numbers with 101 to 999 digits