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131444231054 = 27913714994051
BaseRepresentation
bin111101001101010101…
…1111100101110001110
3110120021120111210011212
41322122223330232032
54123144210343204
6140215030014422
712332211346343
oct1723253745616
9416246453155
10131444231054
1150821929314
12215844a7412
13c51a16b916
14650d2127ca
153644a43c6e
hex1e9aafcb8e

131444231054 has 32 divisors (see below), whose sum is σ = 201303360000. Its totient is φ = 64357675200.

The previous prime is 131444230997. The next prime is 131444231071. The reversal of 131444231054 is 450132444131.

It is a self number, because there is not a number n which added to its sum of digits gives 131444231054.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32445329 + ... + 32449379.

It is an arithmetic number, because the mean of its divisors is an integer number (6290730000).

Almost surely, 2131444231054 is an apocalyptic number.

131444231054 is a deficient number, since it is larger than the sum of its proper divisors (69859128946).

131444231054 is a wasteful number, since it uses less digits than its factorization.

131444231054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768.

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 131444231054 its reverse (450132444131), we get a palindrome (581576675185).

The spelling of 131444231054 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred thirty-one thousand, fifty-four".

Divisors: 1 2 79 137 158 274 1499 2998 4051 8102 10823 21646 118421 205363 236842 320029 410726 554987 640058 1109974 6072449 12144898 16223677 32447354 43843973 87687946 479723471 831925513 959446942 1663851026 65722115527 131444231054