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52803891 = 327838157
BaseRepresentation
bin1100100101101…
…1100100110011
310200100201022200
43021123210303
5102004211031
65123434243
71210553130
oct311334463
9120321280
1052803891
1127896388
1215825983
13ac2a70a
147027587
1549808e6
hex325b933

52803891 has 12 divisors (see below), whose sum is σ = 87168432. Its totient is φ = 30173616.

The previous prime is 52803841. The next prime is 52803899. The reversal of 52803891 is 19830825.

It is not a de Polignac number, because 52803891 - 27 = 52803763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52803899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419016 + ... + 419141.

It is an arithmetic number, because the mean of its divisors is an integer number (7264036).

Almost surely, 252803891 is an apocalyptic number.

52803891 is a deficient number, since it is larger than the sum of its proper divisors (34364541).

52803891 is a wasteful number, since it uses less digits than its factorization.

52803891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838170 (or 838167 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 52803891 is about 7266.6285855271. The cubic root of 52803891 is about 375.1647063143.

The spelling of 52803891 in words is "fifty-two million, eight hundred three thousand, eight hundred ninety-one".

Divisors: 1 3 7 9 21 63 838157 2514471 5867099 7543413 17601297 52803891