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52872940 = 2252643647
BaseRepresentation
bin1100100110110…
…0011011101100
310200111020001001
43021230123230
5102013413230
65125130044
71211261341
oct311543354
9120436031
1052872940
112793324a
1215859924
13ac52c83
1470447c8
1549960ca
hex326c6ec

52872940 has 12 divisors (see below), whose sum is σ = 111033216. Its totient is φ = 21149168.

The previous prime is 52872931. The next prime is 52872961. The reversal of 52872940 is 4927825.

It is a self number, because there is not a number n which added to its sum of digits gives 52872940.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321804 + ... + 1321843.

It is an arithmetic number, because the mean of its divisors is an integer number (9252768).

Almost surely, 252872940 is an apocalyptic number.

It is an amenable number.

52872940 is an abundant number, since it is smaller than the sum of its proper divisors (58160276).

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

52872940 is a wasteful number, since it uses less digits than its factorization.

52872940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643656 (or 2643654 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 52872940 is about 7271.3781362270. The cubic root of 52872940 is about 375.3281631105.

The spelling of 52872940 in words is "fifty-two million, eight hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 2643647 5287294 10574588 13218235 26436470 52872940