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57288612 = 2234774051
BaseRepresentation
bin1101101010001…
…0011110100100
310222210120012110
43122202132210
5104131213422
65403521020
71263642123
oct332423644
9128716173
1057288612
112a379867
1217229170
13bb3aab4
147873aba
15506960c
hex36a27a4

57288612 has 12 divisors (see below), whose sum is σ = 133673456. Its totient is φ = 19096200.

The previous prime is 57288593. The next prime is 57288619. The reversal of 57288612 is 21688275.

57288612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (57288619) 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 in 3 ways as a sum of consecutive naturals, for example, 2387014 + ... + 2387037.

Almost surely, 257288612 is an apocalyptic number.

It is an amenable number.

57288612 is an abundant number, since it is smaller than the sum of its proper divisors (76384844).

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

57288612 is a wasteful number, since it uses less digits than its factorization.

57288612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774058 (or 4774056 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 57288612 is about 7568.9240979151. The cubic root of 57288612 is about 385.4985658742.

The spelling of 57288612 in words is "fifty-seven million, two hundred eighty-eight thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 4774051 9548102 14322153 19096204 28644306 57288612