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52015004 = 2223954409
BaseRepresentation
bin1100011001101…
…0111110011100
310121212122011122
43012122332130
5101303440004
65054510112
71201056146
oct306327634
9117778148
1052015004
11273a7708
1215505338
13aa12612
146c9dc96
154876cbe
hex319af9c

52015004 has 12 divisors (see below), whose sum is σ = 91408800. Its totient is φ = 25898208.

The previous prime is 52015003. The next prime is 52015013. The reversal of 52015004 is 40051025.

It is a super-2 number, since 2×520150042 = 5411121282240032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52015003) 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, 26249 + ... + 28160.

It is an arithmetic number, because the mean of its divisors is an integer number (7617400).

Almost surely, 252015004 is an apocalyptic number.

It is an amenable number.

52015004 is a deficient number, since it is larger than the sum of its proper divisors (39393796).

52015004 is a wasteful number, since it uses less digits than its factorization.

52015004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54652 (or 54650 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 52015004 is about 7212.1428161123. The cubic root of 52015004 is about 373.2870113304.

Adding to 52015004 its reverse (40051025), we get a palindrome (92066029).

The spelling of 52015004 in words is "fifty-two million, fifteen thousand, four".

Divisors: 1 2 4 239 478 956 54409 108818 217636 13003751 26007502 52015004