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57264157 = 1919715299
BaseRepresentation
bin1101101001110…
…0100000011101
310222202022122201
43122130200131
5104124423112
65403211501
71263510616
oct332344035
9128668581
1057264157
112a362455
1217216b91
13bb2c922
147868c0d
155062257
hex369c81d

57264157 has 8 divisors (see below), whose sum is σ = 60588000. Its totient is φ = 53971344.

The previous prime is 57264149. The next prime is 57264169. The reversal of 57264157 is 75146275.

57264157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 57264157 - 23 = 57264149 is a prime.

It is a super-3 number, since 3×572641573 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57264187) 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 7 ways as a sum of consecutive naturals, for example, 3907 + ... + 11392.

It is an arithmetic number, because the mean of its divisors is an integer number (7573500).

Almost surely, 257264157 is an apocalyptic number.

It is an amenable number.

57264157 is a deficient number, since it is larger than the sum of its proper divisors (3323843).

57264157 is a wasteful number, since it uses less digits than its factorization.

57264157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15515.

The product of its digits is 58800, while the sum is 37.

The square root of 57264157 is about 7567.3084382758. The cubic root of 57264157 is about 385.4437050048.

The spelling of 57264157 in words is "fifty-seven million, two hundred sixty-four thousand, one hundred fifty-seven".

Divisors: 1 19 197 3743 15299 290681 3013903 57264157