Zeptillion

Zeptillion is equal to \(10^{3\times10^{21}+3}\), or \(10^{3\text{ sextillion }3}\), with "sextillion" in the short scale.Illion Numbers by Jonathan Bowers The term was coined by Jonathan Bowers. In long scale, it is equal to (10^{6\times10^{21}}\). In his naming system, it is the smallest positive integer with the letter "z" in the name (0 is the only integer whose official English name contains the letter "z"). It is \(3\times 10^{21}+4\)=3,000,000,000,000,000,000,004 digits long.
Written out in decimal form zeptillion (in the short scale) is:
In long scale:
Zeptillion is also known as one milliamilliamilliamilliamilliamilliamilliatillion according to Landon Curt Noll's The English name of a number.
== Etymology ==
The name of this number is based on the suffix "-illion" and SI prefix "zepto-".
== Approximations in other notations ==
Notation 	Lower bound 	Upper bound
Arrow notation 	\(1000\uparrow(1+10\uparrow21)\) 	\(1000\uparrow(1+10\uparrow21)\)
Down-arrow notation 	\(1000\downarrow\downarrow8\) 	\(429\downarrow\downarrow9\)
Steinhaus-Moser Notation 	16[3][3] 	17[3][3]
Copy notation 	2[2,4] 	3[3[22]]
H* function 	H(H(6)) 	H(H(6))
Taro's multivariable Ackermann function	A(3,A(3,70)) 	A(3,A(3,71))
Pound-Star Notation 	#*((1))*(3,0,6)*3 	#*((1))*(3,3)*6
BEAF 	{1000,1+{10,21}} 	{1000,1+{10,21}}
Hyper-E notation 	E(3+3E21) 	E(3+3E21)
Bashicu matrix system 	(0)(1)[8] 	(0)(1)[9]
Hyperfactorial array notation 	(21!)! 	(22!)!
Fast-growing hierarchy 	\(f_2(f_2(67))\) 	\(f_2(f_2(68))\)
Hardy hierarchy 	\(H_{\omega^22}(67)\) 	\(H_{\omega^22}(68)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^{\omega2+1}3+3}}(10)\)	\(g_{\omega^{\omega^{\omega2+1}3+3}}(10)\)
== Sources ==
== See also ==
Category:Numbers
Category:Numbers by Jonathan Bowers
Category:Illion
Category:Class 3
Category:Middle class 3
Category:Tier 2 -illion numbers