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57539382 = 2312775511
BaseRepresentation
bin1101101101111…
…1101100110110
311000021022012020
43123133230312
5104212230012
65413134010
71266035205
oct333375466
9130238166
1057539382
112a53020a
121732a306
13bbc7c94
1478db23c
1550b8a8c
hex36dfb36

57539382 has 16 divisors (see below), whose sum is σ = 115986432. Its totient is φ = 19028520.

The previous prime is 57539381. The next prime is 57539387. The reversal of 57539382 is 28393575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57539381) 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, 36994 + ... + 38517.

It is an arithmetic number, because the mean of its divisors is an integer number (7249152).

Almost surely, 257539382 is an apocalyptic number.

57539382 is an abundant number, since it is smaller than the sum of its proper divisors (58447050).

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

57539382 is a wasteful number, since it uses less digits than its factorization.

57539382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75643.

The product of its digits is 226800, while the sum is 42.

The square root of 57539382 is about 7585.4717717489. The cubic root of 57539382 is about 386.0602293553.

The spelling of 57539382 in words is "fifty-seven million, five hundred thirty-nine thousand, three hundred eighty-two".

Divisors: 1 2 3 6 127 254 381 762 75511 151022 226533 453066 9589897 19179794 28769691 57539382