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56131675 = 5229139557
BaseRepresentation
bin1101011000100…
…0000001011011
310220121210011221
43112020001123
5103332203200
65323032511
71251053125
oct326100133
9126553157
1056131675
1129759616
121696b737
13b824312
147652215
154ddb91a
hex358805b

56131675 has 24 divisors (see below), whose sum is σ = 72651600. Its totient is φ = 42967680.

The previous prime is 56131667. The next prime is 56131687. The reversal of 56131675 is 57613165.

It is not a de Polignac number, because 56131675 - 23 = 56131667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56131675.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100497 + ... + 101053.

It is an arithmetic number, because the mean of its divisors is an integer number (3027150).

Almost surely, 256131675 is an apocalyptic number.

56131675 is a deficient number, since it is larger than the sum of its proper divisors (16519925).

56131675 is a wasteful number, since it uses less digits than its factorization.

56131675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 730 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 56131675 is about 7492.1075139109. The cubic root of 56131675 is about 382.8858651836.

The spelling of 56131675 in words is "fifty-six million, one hundred thirty-one thousand, six hundred seventy-five".

Divisors: 1 5 25 29 139 145 557 695 725 2785 3475 4031 13925 16153 20155 77423 80765 100775 387115 403825 1935575 2245267 11226335 56131675