Trimillillion

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A trimillillion^[1] or tremillillion^[2] is equal to 10^9,003 in the short scale, and 10^18,000 in the long scale.

In Conway-Wechsler system, it is called trillinillion.^[3]^[4]^[5]

Written out in decimal form trimillillion (in the short scale) is:

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In long scale:

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Approximations[]

For short scale:

Notation	Lower bound	Upper bound
Scientific notation	\(1\times10^{9\,003}\)
Arrow notation	\(10\uparrow9\,003\)
Steinhaus-Moser Notation	2632[3]	2633[3]
Copy notation	9[9003]	10[4502]
Chained arrow notation	\(10\rightarrow9\,003\)
Taro's multivariable Ackermann function	A(3,29904)	A(3,29905)
Pound-Star Notation	#((7630))49	#((7631))49
BEAF & Bird's array notation	{10,9003}
Hyper-E notation	E9,003
Bashicu matrix system	(0)(1)[3]	(0)(1)[4]
H* function	H(3 000)
Hyperfactorial array notation	2,963!	2,964!
Fast-growing hierarchy	\(f_2(29\,892)\)	\(f_2(29\,893)\)
Hardy hierarchy	\(H_{\omega^2}(29\,892)\)	\(H_{\omega^2}(29\,893)\)
Slow-growing hierarchy	\(g_{\omega^{\omega^39+3}}(10)\)

For long scale:

Notation	Lower bound	Upper bound
Scientific notation	\(1\times10^{18000}\)
Arrow notation	\(10\uparrow18000\)
Steinhaus-Moser Notation	5[3][3]	6[3][3]
Copy notation	9[18000]	1[18001]
Taro's multivariable Ackermann function	A(3,59791)	A(3,59792)
Pound-Star Notation	#((10073))67	#((10074))67
BEAF	{10,18000}
Hyper-E notation	E18000
Bashicu matrix system	(0)(1)[3]	(0)(1)[4]
Hyperfactorial array notation	(7!)!	(8!)!
Fast-growing hierarchy	\(f_2(f_2(12))\)	\(f_2(f_2(13))\)
Hardy hierarchy	\(H_{\omega^22}(12)\)	\(H_{\omega^22}(13)\)
Slow-growing hierarchy	\(g_{\omega^{\omega^4+\omega^38}}(10)\)

Sources[]

↑ Very Large Numbers: A list of large numbers
↑ https://sites.google.com/site/largenumbers/home/2-4/2-4-8-bowers-illions?authuser=0
↑ Conway and Guy. (1995) "The book of Numbers" Copernicus
↑ Fish. Conway's zillion numbers. Retrieved 2023-04-16.
↑ Fish. Conway's illion converter - 3000-illion. Retrieved 2023-08-03.

Trimillillion

Approximations[]

Sources[]

See also[]