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52004637 = 3231318461
BaseRepresentation
bin1100011001100…
…0011100011101
310121212002221200
43012120130131
5101303122022
65054350113
71201014006
oct306303435
9117762850
1052004637
112739a943
12154bb339
13aa0a999
146c9a1ad
154873bac
hex319871d

52004637 has 12 divisors (see below), whose sum is σ = 75361884. Its totient is φ = 34557120.

The previous prime is 52004611. The next prime is 52004677. The reversal of 52004637 is 73640025.

It is a happy number.

52004637 is a `hidden beast` number, since 5 + 20 + 0 + 4 + 637 = 666.

52004637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1153476 + 50851161 = 1074^2 + 7131^2 .

It is not a de Polignac number, because 52004637 - 27 = 52004509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52004637.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52004677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6414 + ... + 12047.

It is an arithmetic number, because the mean of its divisors is an integer number (6280157).

Almost surely, 252004637 is an apocalyptic number.

It is an amenable number.

52004637 is a deficient number, since it is larger than the sum of its proper divisors (23357247).

52004637 is a wasteful number, since it uses less digits than its factorization.

52004637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18780 (or 18777 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 52004637 is about 7211.4240618618. The cubic root of 52004637 is about 373.2622100021.

The spelling of 52004637 in words is "fifty-two million, four thousand, six hundred thirty-seven".

Divisors: 1 3 9 313 939 2817 18461 55383 166149 5778293 17334879 52004637