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52163880 = 2335434699
BaseRepresentation
bin1100011011111…
…1010100101000
310122011012101120
43012333110220
5101323221010
65102015240
71202246166
oct306772450
9118135346
1052163880
112749954a
1215577520
13aa65302
146cdc236
1548a5e70
hex31bf528

52163880 has 32 divisors (see below), whose sum is σ = 156492000. Its totient is φ = 13910336.

The previous prime is 52163833. The next prime is 52163897. The reversal of 52163880 is 8836125.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217230 + ... + 217469.

It is an arithmetic number, because the mean of its divisors is an integer number (4890375).

Almost surely, 252163880 is an apocalyptic number.

It is an amenable number.

52163880 is an abundant number, since it is smaller than the sum of its proper divisors (104328120).

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

52163880 is a wasteful number, since it uses less digits than its factorization.

52163880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434713 (or 434709 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 52163880 is about 7222.4566457681. The cubic root of 52163880 is about 373.6428095723.

The spelling of 52163880 in words is "fifty-two million, one hundred sixty-three thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 434699 869398 1304097 1738796 2173495 2608194 3477592 4346990 5216388 6520485 8693980 10432776 13040970 17387960 26081940 52163880