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56131045 = 514277867
BaseRepresentation
bin1101011000011…
…1110111100101
310220121202022121
43112013313211
5103332143140
65323025541
71251051235
oct326076745
9126552277
1056131045
11297590a3
121696b2b1
13b823c49
147651cc5
154ddb64a
hex3587de5

56131045 has 8 divisors (see below), whose sum is σ = 67413024. Its totient is φ = 44867664.

The previous prime is 56131027. The next prime is 56131099. The reversal of 56131045 is 54013165.

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 56131045 - 29 = 56130533 is a prime.

It is a Duffinian 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, 3202 + ... + 11068.

It is an arithmetic number, because the mean of its divisors is an integer number (8426628).

Almost surely, 256131045 is an apocalyptic number.

It is an amenable number.

56131045 is a deficient number, since it is larger than the sum of its proper divisors (11281979).

56131045 is a wasteful number, since it uses less digits than its factorization.

56131045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9299.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56131045 is about 7492.0654695484. The cubic root of 56131045 is about 382.8844327244.

The spelling of 56131045 in words is "fifty-six million, one hundred thirty-one thousand, forty-five".

Divisors: 1 5 1427 7135 7867 39335 11226209 56131045