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51112156 = 2267190717
BaseRepresentation
bin1100001011111…
…0100011011100
310120011202200211
43002332203130
5101041042111
65023302204
71160306014
oct302764334
9116152624
1051112156
1126940357
121514a964
13a7876a4
146b06c44
154749521
hex30be8dc

51112156 has 12 divisors (see below), whose sum is σ = 90781768. Its totient is φ = 25174512.

The previous prime is 51112153. The next prime is 51112169. The reversal of 51112156 is 65121115.

It is a happy number.

It is a super-2 number, since 2×511121562 = 5224904981936672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95091 + ... + 95626.

Almost surely, 251112156 is an apocalyptic number.

It is an amenable number.

51112156 is a deficient number, since it is larger than the sum of its proper divisors (39669612).

51112156 is a wasteful number, since it uses less digits than its factorization.

51112156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190788 (or 190786 counting only the distinct ones).

The product of its digits is 300, while the sum is 22.

The square root of 51112156 is about 7149.2766067624. The cubic root of 51112156 is about 371.1146227638.

The spelling of 51112156 in words is "fifty-one million, one hundred twelve thousand, one hundred fifty-six".

Divisors: 1 2 4 67 134 268 190717 381434 762868 12778039 25556078 51112156