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57027645 = 345197411
BaseRepresentation
bin1101100110001…
…0110000111101
310222022022020000
43121202300331
5104044341040
65354144513
71261504233
oct331426075
9128268200
1057027645
112a210794
1217122139
13ba7908c
147806953
155017130
hex3662c3d

57027645 has 40 divisors (see below), whose sum is σ = 107622240. Its totient is φ = 28810080.

The previous prime is 57027643. The next prime is 57027667. The reversal of 57027645 is 54672075.

57027645 is a `hidden beast` number, since 5 + 7 + 0 + 2 + 7 + 645 = 666.

It is not a de Polignac number, because 57027645 - 21 = 57027643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57027643) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3990 + ... + 11400.

It is an arithmetic number, because the mean of its divisors is an integer number (2690556).

Almost surely, 257027645 is an apocalyptic number.

It is an amenable number.

57027645 is a deficient number, since it is larger than the sum of its proper divisors (50594595).

57027645 is a wasteful number, since it uses less digits than its factorization.

57027645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7447 (or 7438 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 57027645 is about 7551.6650481864. The cubic root of 57027645 is about 384.9123205069.

The spelling of 57027645 in words is "fifty-seven million, twenty-seven thousand, six hundred forty-five".

Divisors: 1 3 5 9 15 19 27 45 57 81 95 135 171 285 405 513 855 1539 2565 7411 7695 22233 37055 66699 111165 140809 200097 333495 422427 600291 704045 1000485 1267281 2112135 3001455 3801843 6336405 11405529 19009215 57027645