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56000961 = 3219327491
BaseRepresentation
bin1101010110100…
…0000111000001
310220101010212200
43111220013001
5103314012321
65320143413
71250000052
oct325500701
9126333780
1056000961
112967a395
1216907b69
13b7a9983
14761a729
154db2d26
hex35681c1

56000961 has 12 divisors (see below), whose sum is σ = 85147920. Its totient is φ = 35368920.

The previous prime is 56000951. The next prime is 56000963. The reversal of 56000961 is 16900065.

It is not a de Polignac number, because 56000961 - 29 = 56000449 is a prime.

It is a super-2 number, since 2×560009612 = 6272215265847042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56000963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 163575 + ... + 163916.

It is an arithmetic number, because the mean of its divisors is an integer number (7095660).

Almost surely, 256000961 is an apocalyptic number.

It is an amenable number.

56000961 is a deficient number, since it is larger than the sum of its proper divisors (29146959).

56000961 is a wasteful number, since it uses less digits than its factorization.

56000961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327516 (or 327513 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 56000961 is about 7483.3789827858. The cubic root of 56000961 is about 382.5884250263.

The spelling of 56000961 in words is "fifty-six million, nine hundred sixty-one", and thus it is an aban number.

Divisors: 1 3 9 19 57 171 327491 982473 2947419 6222329 18666987 56000961