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52756938 = 23213225457
BaseRepresentation
bin1100100101000…
…0000111001010
310200021022220200
43021100013022
5102001210223
65122433030
71210266213
oct311200712
9120238820
1052756938
1127864083
1215802776
13ac12230
14701440a
154971a43
hex32501ca

52756938 has 24 divisors (see below), whose sum is σ = 123100068. Its totient is φ = 16232832.

The previous prime is 52756927. The next prime is 52756961. The reversal of 52756938 is 83965725.

It is a happy number.

52756938 is a `hidden beast` number, since 52 + 7 + 569 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51022449 + 1734489 = 7143^2 + 1317^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52756893 and 52756902.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112495 + ... + 112962.

Almost surely, 252756938 is an apocalyptic number.

52756938 is an abundant number, since it is smaller than the sum of its proper divisors (70343130).

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

52756938 is a wasteful number, since it uses less digits than its factorization.

52756938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225478 (or 225475 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 52756938 is about 7263.3971390803. The cubic root of 52756938 is about 375.0534750408.

The spelling of 52756938 in words is "fifty-two million, seven hundred fifty-six thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 225457 450914 676371 1352742 2029113 2930941 4058226 5861882 8792823 17585646 26378469 52756938