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57684513 = 3191012009
BaseRepresentation
bin1101110000001…
…1001000100001
311000112200021110
43130003020201
5104231401023
65420213533
71300211265
oct334031041
9130480243
1057684513
112a61a257
121739a2a9
13bc49063
1479380a5
1550e6a93
hex3703221

57684513 has 8 divisors (see below), whose sum is σ = 80960800. Its totient is φ = 36432288.

The previous prime is 57684503. The next prime is 57684541. The reversal of 57684513 is 31548675.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57684513 - 28 = 57684257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57684503) 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, 505948 + ... + 506061.

It is an arithmetic number, because the mean of its divisors is an integer number (10120100).

Almost surely, 257684513 is an apocalyptic number.

It is an amenable number.

57684513 is a deficient number, since it is larger than the sum of its proper divisors (23276287).

57684513 is a wasteful number, since it uses less digits than its factorization.

57684513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012031.

The product of its digits is 100800, while the sum is 39.

The square root of 57684513 is about 7595.0321263310. The cubic root of 57684513 is about 386.3845421054.

The spelling of 57684513 in words is "fifty-seven million, six hundred eighty-four thousand, five hundred thirteen".

Divisors: 1 3 19 57 1012009 3036027 19228171 57684513