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56885031 = 3372193173
BaseRepresentation
bin1101100011111…
…1111100100111
310222001001121000
43120333330213
5104030310111
65351124343
71260341400
oct330777447
9128031530
1056885031
112a123625
12170736b3
13ba291a8
1477aa9a7
154ed9c56
hex363ff27

56885031 has 96 divisors (see below), whose sum is σ = 107980800. Its totient is φ = 29393280.

The previous prime is 56885011. The next prime is 56885033. The reversal of 56885031 is 13058865.

56885031 is nontrivially palindromic in base 4.

It is not a de Polignac number, because 56885031 - 27 = 56884903 is a prime.

It is a super-2 number, since 2×568850312 = 6471813503741922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56885033) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 779211 + ... + 779283.

It is an arithmetic number, because the mean of its divisors is an integer number (1124800).

Almost surely, 256885031 is an apocalyptic number.

56885031 is a deficient number, since it is larger than the sum of its proper divisors (51095769).

56885031 is a wasteful number, since it uses less digits than its factorization.

56885031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 56885031 is about 7542.2165840023. The cubic root of 56885031 is about 384.5911914085.

The spelling of 56885031 in words is "fifty-six million, eight hundred eighty-five thousand, thirty-one".

Divisors: 1 3 7 9 19 21 27 31 49 57 63 73 93 133 147 171 189 217 219 279 399 441 511 513 589 651 657 837 931 1197 1323 1387 1519 1533 1767 1953 1971 2263 2793 3577 3591 4123 4161 4557 4599 5301 5859 6789 8379 9709 10731 12369 12483 13671 13797 15841 15903 20367 25137 28861 29127 32193 37107 37449 41013 42997 47523 61101 67963 86583 87381 96579 110887 111321 128991 142569 203889 259749 262143 300979 332661 386973 427707 611667 779247 902937 997983 1160919 1835001 2106853 2708811 2993949 6320559 8126433 18961677 56885031