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56836 = 22131093
BaseRepresentation
bin1101111000000100
32212222001
431320010
53304321
61115044
7324463
oct157004
985861
1056836
113977a
1228a84
131cb40
14169da
1511c91
hexde04

56836 has 12 divisors (see below), whose sum is σ = 107212. Its totient is φ = 26208.

The previous prime is 56827. The next prime is 56843. The reversal of 56836 is 63865.

It can be written as a sum of positive squares in 2 ways, for example, as 36100 + 20736 = 190^2 + 144^2 .

It is a congruent number.

It is an unprimeable number.

56836 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495 + ... + 598.

256836 is an apocalyptic number.

It is an amenable number.

56836 is a deficient number, since it is larger than the sum of its proper divisors (50376).

56836 is a wasteful number, since it uses less digits than its factorization.

56836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1108 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 56836 is about 238.4030201151. The cubic root of 56836 is about 38.4480662559.

The spelling of 56836 in words is "fifty-six thousand, eight hundred thirty-six".

Divisors: 1 2 4 13 26 52 1093 2186 4372 14209 28418 56836