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52015628 = 2271857701
BaseRepresentation
bin1100011001101…
…1001000001100
310121212200000202
43012123020030
5101304000003
65054513032
71201061030
oct306331014
9117780022
1052015628
11273a8125
1215505778
13aa129a2
146ca01c0
154877088
hex319b20c

52015628 has 12 divisors (see below), whose sum is σ = 104031312. Its totient is φ = 22292400.

The previous prime is 52015591. The next prime is 52015637. The reversal of 52015628 is 82651025.

52015628 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 52015628.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 928823 + ... + 928878.

It is an arithmetic number, because the mean of its divisors is an integer number (8669276).

Almost surely, 252015628 is an apocalyptic number.

It is an amenable number.

52015628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52015628 is a wasteful number, since it uses less digits than its factorization.

52015628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857712 (or 1857710 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 52015628 is about 7212.1860763572. The cubic root of 52015628 is about 373.2885040418.

The spelling of 52015628 in words is "fifty-two million, fifteen thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 1857701 3715402 7430804 13003907 26007814 52015628