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56285761 = 722349943
BaseRepresentation
bin1101011010110…
…1101001000001
310220220121112211
43112231221001
5103402121021
65330222121
71252264300
oct326555101
9126817484
1056285761
1129854364
1216a24941
13b8794ac
147692437
154e1c3e1
hex35ada41

56285761 has 12 divisors (see below), whose sum is σ = 68323392. Its totient is φ = 46146408.

The previous prime is 56285731. The next prime is 56285777. The reversal of 56285761 is 16758265.

56285761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56285761 - 27 = 56285633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56285731) 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 11 ways as a sum of consecutive naturals, for example, 23845 + ... + 26098.

It is an arithmetic number, because the mean of its divisors is an integer number (5693616).

Almost surely, 256285761 is an apocalyptic number.

It is an amenable number.

56285761 is a deficient number, since it is larger than the sum of its proper divisors (12037631).

56285761 is a wasteful number, since it uses less digits than its factorization.

56285761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49980 (or 49973 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 56285761 is about 7502.3836878688. The cubic root of 56285761 is about 383.2358960080.

The spelling of 56285761 in words is "fifty-six million, two hundred eighty-five thousand, seven hundred sixty-one".

Divisors: 1 7 23 49 161 1127 49943 349601 1148689 2447207 8040823 56285761