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56857867 = 115168897
BaseRepresentation
bin1101100011100…
…1010100001011
310221222200022221
43120321110023
5104023422432
65350354511
71260166243
oct330712413
9127880287
1056857867
112a105180
121705ba37
13ba19a11
1477a0b23
154ed1b97
hex363950b

56857867 has 4 divisors (see below), whose sum is σ = 62026776. Its totient is φ = 51688960.

The previous prime is 56857859. The next prime is 56857873. The reversal of 56857867 is 76875865.

56857867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56857867 - 23 = 56857859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56857847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584438 + ... + 2584459.

It is an arithmetic number, because the mean of its divisors is an integer number (15506694).

Almost surely, 256857867 is an apocalyptic number.

56857867 is a deficient number, since it is larger than the sum of its proper divisors (5168909).

56857867 is a wasteful number, since it uses less digits than its factorization.

56857867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168908.

The product of its digits is 2822400, while the sum is 52.

The square root of 56857867 is about 7540.4155721021. The cubic root of 56857867 is about 384.5299644138.

The spelling of 56857867 in words is "fifty-six million, eight hundred fifty-seven thousand, eight hundred sixty-seven".

Divisors: 1 11 5168897 56857867