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52393188 = 22313133329
BaseRepresentation
bin1100011111011…
…1010011100100
310122120211221110
43013313103210
5101403040223
65110545020
71204222551
oct307672344
9118524843
1052393188
1127635861
1215668170
13ab157b3
146d5ba28
1548edd93
hex31f74e4

52393188 has 24 divisors (see below), whose sum is σ = 123187680. Its totient is φ = 17330560.

The previous prime is 52393177. The next prime is 52393207. The reversal of 52393188 is 88139325.

It is a super-2 number, since 2×523931882 = 5490092297606688, which contains 22 as substring.

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, 15093 + ... + 18236.

It is an arithmetic number, because the mean of its divisors is an integer number (5132820).

Almost surely, 252393188 is an apocalyptic number.

It is an amenable number.

52393188 is an abundant number, since it is smaller than the sum of its proper divisors (70794492).

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

52393188 is a wasteful number, since it uses less digits than its factorization.

52393188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33467 (or 33465 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 52393188 is about 7238.3138920608. The cubic root of 52393188 is about 374.1895099890.

The spelling of 52393188 in words is "fifty-two million, three hundred ninety-three thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 12 131 262 393 524 786 1572 33329 66658 99987 133316 199974 399948 4366099 8732198 13098297 17464396 26196594 52393188