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56952931 = 78136133
BaseRepresentation
bin1101100101000…
…0100001100011
310222011111201211
43121100201203
5104034443211
65352410551
71261043350
oct331204143
9128144654
1056952931
112a16a642
12170a6a57
13ba51079
1477c7627
154eeee21
hex3650863

56952931 has 4 divisors (see below), whose sum is σ = 65089072. Its totient is φ = 48816792.

The previous prime is 56952893. The next prime is 56952943. The reversal of 56952931 is 13925965.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56952931 - 27 = 56952803 is a prime.

It is a super-2 number, since 2×569529312 = 6487272698981522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56952971) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4068060 + ... + 4068073.

It is an arithmetic number, because the mean of its divisors is an integer number (16272268).

Almost surely, 256952931 is an apocalyptic number.

56952931 is a deficient number, since it is larger than the sum of its proper divisors (8136141).

56952931 is an equidigital number, since it uses as much as digits as its factorization.

56952931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8136140.

The product of its digits is 72900, while the sum is 40.

The square root of 56952931 is about 7546.7165708008. The cubic root of 56952931 is about 384.7441511486.

The spelling of 56952931 in words is "fifty-six million, nine hundred fifty-two thousand, nine hundred thirty-one".

Divisors: 1 7 8136133 56952931