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131056452631 = 1322345207469
BaseRepresentation
bin111101000001110010…
…0101100010000010111
3110112021112211121012001
41322003210230100113
54121400422441011
6140112334340131
712316462316116
oct1720344542027
9415245747161
10131056452631
1150642a50685
122149665a647
13c487a19130
1464b390dc7d
1536209967c1
hex1e8392c417

131056452631 has 8 divisors (see below), whose sum is σ = 141770625920. Its totient is φ = 120432694752.

The previous prime is 131056452623. The next prime is 131056452643. The reversal of 131056452631 is 136254650131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131056452631 - 23 = 131056452623 is a prime.

It is a super-2 number, since 2×1310564526312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131056452601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22600836 + ... + 22606633.

It is an arithmetic number, because the mean of its divisors is an integer number (17721328240).

Almost surely, 2131056452631 is an apocalyptic number.

131056452631 is a deficient number, since it is larger than the sum of its proper divisors (10714173289).

131056452631 is a wasteful number, since it uses less digits than its factorization.

131056452631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45207705.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 131056452631 in words is "one hundred thirty-one billion, fifty-six million, four hundred fifty-two thousand, six hundred thirty-one".

Divisors: 1 13 223 2899 45207469 587697097 10081265587 131056452631