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56131353 = 332078939
BaseRepresentation
bin1101011000011…
…1111100011001
310220121202202000
43112013330121
5103332200403
65323031213
71251052155
oct326077431
9126552660
1056131353
1129759353
121696b509
13b824125
147652065
154ddb7a3
hex3587f19

56131353 has 8 divisors (see below), whose sum is σ = 83157600. Its totient is φ = 37420884.

The previous prime is 56131351. The next prime is 56131363. The reversal of 56131353 is 35313165.

It is not a de Polignac number, because 56131353 - 21 = 56131351 is a prime.

It is a super-2 number, since 2×561313532 = 6301457579221218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2078939 = 56131353 / (5 + 6 + 1 + 3 + 1 + 3 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (56131351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039443 + ... + 1039496.

It is an arithmetic number, because the mean of its divisors is an integer number (10394700).

Almost surely, 256131353 is an apocalyptic number.

It is an amenable number.

56131353 is a deficient number, since it is larger than the sum of its proper divisors (27026247).

56131353 is a wasteful number, since it uses less digits than its factorization.

56131353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078948 (or 2078942 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 56131353 is about 7492.0860245996. The cubic root of 56131353 is about 382.8851330391.

The spelling of 56131353 in words is "fifty-six million, one hundred thirty-one thousand, three hundred fifty-three".

Divisors: 1 3 9 27 2078939 6236817 18710451 56131353