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57664362 = 2371372961
BaseRepresentation
bin1101101111111…
…0001101101010
311000111122122010
43123332031222
5104230224422
65415540350
71300065450
oct333761552
9130448563
1057664362
112a6060a8
121738a6b6
13bc3cb32
1479309d0
1550e0b0c
hex36fe36a

57664362 has 16 divisors (see below), whose sum is σ = 131804352. Its totient is φ = 16475520.

The previous prime is 57664361. The next prime is 57664403. The reversal of 57664362 is 26346675.

It is a self number, because there is not a number n which added to its sum of digits gives 57664362.

It is not an unprimeable number, because it can be changed into a prime (57664361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686439 + ... + 686522.

It is an arithmetic number, because the mean of its divisors is an integer number (8237772).

Almost surely, 257664362 is an apocalyptic number.

57664362 is an abundant number, since it is smaller than the sum of its proper divisors (74139990).

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

57664362 is a wasteful number, since it uses less digits than its factorization.

57664362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372973.

The product of its digits is 181440, while the sum is 39.

The square root of 57664362 is about 7593.7054196222. The cubic root of 57664362 is about 386.3395448071.

The spelling of 57664362 in words is "fifty-seven million, six hundred sixty-four thousand, three hundred sixty-two".

Divisors: 1 2 3 6 7 14 21 42 1372961 2745922 4118883 8237766 9610727 19221454 28832181 57664362