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56869845 = 3517223019
BaseRepresentation
bin1101100011110…
…0001111010101
310222000021202120
43120330033111
5104024313340
65350530153
71260246204
oct330741725
9128007676
1056869845
112a11317a
1217066959
13ba222c6
1477a523b
154ed54d0
hex363c3d5

56869845 has 16 divisors (see below), whose sum is σ = 96344640. Its totient is φ = 28546304.

The previous prime is 56869837. The next prime is 56869867. The reversal of 56869845 is 54896865.

It is a cyclic number.

It is not a de Polignac number, because 56869845 - 23 = 56869837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111255 + ... + 111764.

It is an arithmetic number, because the mean of its divisors is an integer number (6021540).

Almost surely, 256869845 is an apocalyptic number.

It is an amenable number.

56869845 is a deficient number, since it is larger than the sum of its proper divisors (39474795).

56869845 is a wasteful number, since it uses less digits than its factorization.

56869845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223044.

The product of its digits is 2073600, while the sum is 51.

The square root of 56869845 is about 7541.2097835825. The cubic root of 56869845 is about 384.5569649373.

The spelling of 56869845 in words is "fifty-six million, eight hundred sixty-nine thousand, eight hundred forty-five".

Divisors: 1 3 5 15 17 51 85 255 223019 669057 1115095 3345285 3791323 11373969 18956615 56869845