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52856560 = 2452922783
BaseRepresentation
bin1100100110100…
…0011011110000
310200110101120101
43021220123300
5102012402220
65124522144
71211162521
oct311503360
9120411511
1052856560
1127921a09
1215850354
13ac48693
14703c848
15499130a
hex32686f0

52856560 has 40 divisors (see below), whose sum is σ = 127134720. Its totient is φ = 20412672.

The previous prime is 52856533. The next prime is 52856563. The reversal of 52856560 is 6565825.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52856563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9072 + ... + 13711.

It is an arithmetic number, because the mean of its divisors is an integer number (3178368).

Almost surely, 252856560 is an apocalyptic number.

It is an amenable number.

52856560 is an abundant number, since it is smaller than the sum of its proper divisors (74278160).

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

52856560 is a wasteful number, since it uses less digits than its factorization.

52856560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22825 (or 22819 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 52856560 is about 7270.2517150371. The cubic root of 52856560 is about 375.2894003062.

The spelling of 52856560 in words is "fifty-two million, eight hundred fifty-six thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 22783 45566 91132 113915 182264 227830 364528 455660 660707 911320 1321414 1822640 2642828 3303535 5285656 6607070 10571312 13214140 26428280 52856560