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57860393 is a prime number
BaseRepresentation
bin1101110010111…
…0000100101001
311000212121112112
43130232010221
5104303013033
65424052105
71301543123
oct334560451
9130777475
1057860393
112a72a408
1217464035
13bcab126
147982213
15512dc48
hex372e129

57860393 has 2 divisors, whose sum is σ = 57860394. Its totient is φ = 57860392.

The previous prime is 57860381. The next prime is 57860417. The reversal of 57860393 is 39306875.

57860393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51724864 + 6135529 = 7192^2 + 2477^2 .

It is a cyclic number.

It is not a de Polignac number, because 57860393 - 28 = 57860137 is a prime.

It is a super-2 number, since 2×578603932 = 6695650156228898, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57860393.

It is not a weakly prime, because it can be changed into another prime (57862393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28930196 + 28930197.

It is an arithmetic number, because the mean of its divisors is an integer number (28930197).

Almost surely, 257860393 is an apocalyptic number.

It is an amenable number.

57860393 is a deficient number, since it is larger than the sum of its proper divisors (1).

57860393 is an equidigital number, since it uses as much as digits as its factorization.

57860393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 57860393 is about 7606.6019351613. The cubic root of 57860393 is about 386.7768389817.

The spelling of 57860393 in words is "fifty-seven million, eight hundred sixty thousand, three hundred ninety-three".