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52731880 = 23510312799
BaseRepresentation
bin1100100100100…
…1111111101000
310200020001112121
43021021333220
5101444410010
65122121024
71210133155
oct311117750
9120201477
1052731880
1127847273
12157b0174
13ac039c6
14700922c
1549693da
hex3249fe8

52731880 has 32 divisors (see below), whose sum is σ = 119808000. Its totient is φ = 20886336.

The previous prime is 52731869. The next prime is 52731923. The reversal of 52731880 is 8813725.

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, 2280 + ... + 10519.

It is an arithmetic number, because the mean of its divisors is an integer number (3744000).

Almost surely, 252731880 is an apocalyptic number.

It is an amenable number.

52731880 is an abundant number, since it is smaller than the sum of its proper divisors (67076120).

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

52731880 is a wasteful number, since it uses less digits than its factorization.

52731880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12913 (or 12909 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 52731880 is about 7261.6719837789. The cubic root of 52731880 is about 374.9940858327.

The spelling of 52731880 in words is "fifty-two million, seven hundred thirty-one thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 103 206 412 515 824 1030 2060 4120 12799 25598 51196 63995 102392 127990 255980 511960 1318297 2636594 5273188 6591485 10546376 13182970 26365940 52731880