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52120056 = 23317312553
BaseRepresentation
bin1100011011010…
…0100111111000
310122001222021110
43012310213320
5101320320211
65101040320
71202004342
oct306644770
9118058243
1052120056
112746962a
12155560a0
13aa4b391
146cca292
154897ea6
hex31b49f8

52120056 has 32 divisors (see below), whose sum is σ = 131063760. Its totient is φ = 17271552.

The previous prime is 52120031. The next prime is 52120067. The reversal of 52120056 is 65002125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125 + ... + 10428.

Almost surely, 252120056 is an apocalyptic number.

It is an amenable number.

52120056 is an abundant number, since it is smaller than the sum of its proper divisors (78943704).

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

52120056 is a wasteful number, since it uses less digits than its factorization.

52120056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12735 (or 12731 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 52120056 is about 7219.4221375398. The cubic root of 52120056 is about 373.5381451304.

The spelling of 52120056 in words is "fifty-two million, one hundred twenty thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 24 173 346 519 692 1038 1384 2076 4152 12553 25106 37659 50212 75318 100424 150636 301272 2171669 4343338 6515007 8686676 13030014 17373352 26060028 52120056