Octacontillion

The octacontillion is equal to \(10^{3\left(10^{240}\right)+3}\), or \(10^{3\text{ novemseptuagintillion }3}\).Illion Numbers by Jonathan Bowers The term was coined by Jonathan Bowers.
Octacontillion is also known as one millia^80tillion according to Landon Curt Noll.Landon Curt Noll, The English name of a number.
== Etymology ==
The name of this number is based on the suffix "-illion" and the prefix "octaconta-" (from Greek 80).
== Approximations in other notations ==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow240)\) 	\(1000\uparrow(1+10\uparrow240)\)
Down-arrow notation 	\(1000\downarrow\downarrow81\) 	\(64\downarrow\downarrow134\)
Steinhaus-Moser Notation 	115[3][3] 	116[3][3]
Copy notation 	2[2[241]] 	3[3[241]]
H* function 	H(H(79)) 	H(H(79))
Taro's multivariable Ackermann function	A(3,A(3,797)) 	A(3,A(3,798))
Pound-Star Notation 	#*((1))*((3))*8 	#*((1))*((4))*8
BEAF 	{1000,1+{10,240}} 	{1000,1+{10,240}}
Hyper-E notation 	E(3+3E240) 	E(3+3E240)
Bashicu matrix system 	(0)(1)[28] 	(0)(1)[29]
Hyperfactorial array notation 	(138!)! 	(139!)!
Fast-growing hierarchy 	\(f_2(f_2(790))\) 	\(f_2(f_2(791))\)
Hardy hierarchy 	\(H_{\omega^22}(790)\) 	\(H_{\omega^22}(791)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega^22+\omega4}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega^22+\omega4}3+3}}(10)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Jonathan Bowers
Category:Illion
Category:Class 3
Category:Greek-based name
Category:Upper class 3
Category:Tier 2 -illion numbers