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52804539 = 3219133067
BaseRepresentation
bin1100100101101…
…1101110111011
310200100202012200
43021123232323
5102004221124
65123441243
71210555044
oct311335673
9120322180
1052804539
1127896917
1215826223
13ac2aab8
1470278cb
154980bc9
hex325bbbb

52804539 has 12 divisors (see below), whose sum is σ = 76337976. Its totient is φ = 35173152.

The previous prime is 52804537. The next prime is 52804579. The reversal of 52804539 is 93540825.

It is not a de Polignac number, because 52804539 - 21 = 52804537 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52804537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15684 + ... + 18750.

It is an arithmetic number, because the mean of its divisors is an integer number (6361498).

Almost surely, 252804539 is an apocalyptic number.

52804539 is a deficient number, since it is larger than the sum of its proper divisors (23533437).

52804539 is a wasteful number, since it uses less digits than its factorization.

52804539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986 (or 4983 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 52804539 is about 7266.6731727800. The cubic root of 52804539 is about 375.1662409596.

The spelling of 52804539 in words is "fifty-two million, eight hundred four thousand, five hundred thirty-nine".

Divisors: 1 3 9 1913 3067 5739 9201 17217 27603 5867171 17601513 52804539