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57402693 = 3217596359
BaseRepresentation
bin1101101011111…
…0010101000101
311000000100200200
43122332111011
5104143341233
65410201113
71264625535
oct332762505
9130010620
1057402693
112a447547
1217283199
13bb7a9ba
1478a34c5
15508d313
hex36be545

57402693 has 24 divisors (see below), whose sum is σ = 89294400. Its totient is φ = 35401344.

The previous prime is 57402689. The next prime is 57402713. The reversal of 57402693 is 39620475.

It is not a de Polignac number, because 57402693 - 22 = 57402689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57402193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5848 + ... + 12206.

It is an arithmetic number, because the mean of its divisors is an integer number (3720600).

Almost surely, 257402693 is an apocalyptic number.

It is an amenable number.

57402693 is a deficient number, since it is larger than the sum of its proper divisors (31891707).

57402693 is a wasteful number, since it uses less digits than its factorization.

57402693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6441 (or 6438 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 57402693 is about 7576.4564936387. The cubic root of 57402693 is about 385.7542822134.

The spelling of 57402693 in words is "fifty-seven million, four hundred two thousand, six hundred ninety-three".

Divisors: 1 3 9 17 51 59 153 177 531 1003 3009 6359 9027 19077 57231 108103 324309 375181 972927 1125543 3376629 6378077 19134231 57402693