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56312886 = 2374331181
BaseRepresentation
bin1101011011010…
…0010000110110
310220221222202110
43112310100312
5103404003021
65330551450
71252436340
oct326642066
9126858673
1056312886
1129872783
1216a38586
13b888946
14769c290
154e25476
hex35b4436

56312886 has 32 divisors (see below), whose sum is σ = 131712768. Its totient is φ = 15714720.

The previous prime is 56312849. The next prime is 56312887. The reversal of 56312886 is 68821365.

It is a happy number.

56312886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×563128862 = 6342282259297992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56312887) 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 15 ways as a sum of consecutive naturals, for example, 13785 + ... + 17396.

It is an arithmetic number, because the mean of its divisors is an integer number (4116024).

Almost surely, 256312886 is an apocalyptic number.

56312886 is an abundant number, since it is smaller than the sum of its proper divisors (75399882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56312886 is a wasteful number, since it uses less digits than its factorization.

56312886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31236.

The product of its digits is 69120, while the sum is 39.

The square root of 56312886 is about 7504.1912289067. The cubic root of 56312886 is about 383.2974486047.

The spelling of 56312886 in words is "fifty-six million, three hundred twelve thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 43 86 129 258 301 602 903 1806 31181 62362 93543 187086 218267 436534 654801 1309602 1340783 2681566 4022349 8044698 9385481 18770962 28156443 56312886