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312131214001142 = 21710978368577779
BaseRepresentation
bin100011011111000011011011…
…0001000100100001111110110
31111221011110012222022120202122
41012332012312020210033312
5311402424211241014032
63023503033345435542
7122513510313220634
oct10676066610441766
91457143188276678
10312131214001142
1190500117072488
122b01115403bbb2
1310521b023534a3
145711334c16354
1526143b0e97012
hex11be1b62243f6

312131214001142 has 16 divisors (see below), whose sum is σ = 496189713731760. Its totient is φ = 146751379915008.

The previous prime is 312131214001111. The next prime is 312131214001183. The reversal of 312131214001142 is 241100412131213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184251592 + ... + 4184326187.

It is an arithmetic number, because the mean of its divisors is an integer number (31011857108235).

Almost surely, 2312131214001142 is an apocalyptic number.

312131214001142 is a deficient number, since it is larger than the sum of its proper divisors (184058499730618).

312131214001142 is a wasteful number, since it uses less digits than its factorization.

312131214001142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368578895.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 312131214001142 its reverse (241100412131213), we get a palindrome (553231626132355).

The spelling of 312131214001142 in words is "three hundred twelve trillion, one hundred thirty-one billion, two hundred fourteen million, one thousand, one hundred forty-two".

Divisors: 1 2 17 34 1097 2194 18649 37298 8368577779 16737155558 142265822243 284531644486 9180329823563 18360659647126 156065607000571 312131214001142