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51256092 = 2235238167
BaseRepresentation
bin1100001110000…
…1101100011100
310120110002010210
43003201230130
5101110143332
65030332420
71161445446
oct303415434
9116402123
1051256092
1126a29508
12151ba110
13a808064
146b43496
154776ecc
hex30e1b1c

51256092 has 24 divisors (see below), whose sum is σ = 119840896. Its totient is φ = 17050608.

The previous prime is 51256087. The next prime is 51256099. The reversal of 51256092 is 29065215.

It is a happy number.

It is a super-2 number, since 2×512560922 = 5254373934224928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51256099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2193 + ... + 10359.

Almost surely, 251256092 is an apocalyptic number.

It is an amenable number.

51256092 is an abundant number, since it is smaller than the sum of its proper divisors (68584804).

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

51256092 is a wasteful number, since it uses less digits than its factorization.

51256092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8697 (or 8695 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 51256092 is about 7159.3360027310. The cubic root of 51256092 is about 371.4626592834.

The spelling of 51256092 in words is "fifty-one million, two hundred fifty-six thousand, ninety-two".

Divisors: 1 2 3 4 6 12 523 1046 1569 2092 3138 6276 8167 16334 24501 32668 49002 98004 4271341 8542682 12814023 17085364 25628046 51256092