Heptacontillion

Heptacontillion is equal to \(10^{3\left(10^{210}\right)+3}\), or \(10^{3\text{ novemsexagintillion }3}\).Illion Numbers by Jonathan Bowers The term was coined by Jonathan Bowers.
Heptacontillion is also known as one millia^70tillion 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 "heptaconta-" (from Greek for 70).
== Approximations in other notations ==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow210)\) 	\(1000\uparrow(1+10\uparrow210)\)
Down-arrow notation 	\(1000\downarrow\downarrow71\) 	\(689\downarrow\downarrow75\)
Steinhaus-Moser Notation 	103[3][3] 	104[3][3]
Copy notation 	2[2[211]] 	3[3[211]]
H* function 	H(H(69)) 	H(H(69))
Taro's multivariable Ackermann function	A(3,A(3,697)) 	A(3,A(3,698))
Pound-Star Notation 	#*((1))*((107))*7 	#*((1))*((108))*7
BEAF 	{1000,1+{10,210}} 	{1000,1+{10,210}}
Hyper-E notation 	E(3+3E210) 	E(3+3E210)
Bashicu matrix system 	(0)(1)[26] 	(0)(1)[27]
Hyperfactorial array notation 	(124!)! 	(125!)!
Fast-growing hierarchy 	\(f_2(f_2(691))\) 	\(f_2(f_2(692))\)
Hardy hierarchy 	\(H_{\omega^22}(691)\) 	\(H_{\omega^22}(692)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega^22+\omega}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega^22+\omega}3+3}}(10)\)
== 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