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52712868 = 22313337903
BaseRepresentation
bin1100100100010…
…1010110100100
310200012002110110
43021011112210
5101443302433
65121453020
71210023555
oct311052644
9120162413
1052712868
1127833a5a
12157a1170
13abc8160
14700232c
154963963
hex32455a4

52712868 has 24 divisors (see below), whose sum is σ = 132458368. Its totient is φ = 16219296.

The previous prime is 52712867. The next prime is 52712879. The reversal of 52712868 is 86821725.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (52712867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 168796 + ... + 169107.

Almost surely, 252712868 is an apocalyptic number.

It is an amenable number.

52712868 is an abundant number, since it is smaller than the sum of its proper divisors (79745500).

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

52712868 is a wasteful number, since it uses less digits than its factorization.

52712868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337923 (or 337921 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 52712868 is about 7260.3628008523. The cubic root of 52712868 is about 374.9490135124.

The spelling of 52712868 in words is "fifty-two million, seven hundred twelve thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 337903 675806 1013709 1351612 2027418 4054836 4392739 8785478 13178217 17570956 26356434 52712868