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57250012 = 2224475849
BaseRepresentation
bin1101101001100…
…1000011011100
310222201121020211
43122121003130
5104124000022
65403022204
71263421441
oct332310334
9128647224
1057250012
112a352866
121720a964
13bb26361
1478639c8
15505ce77
hex36990dc

57250012 has 12 divisors (see below), whose sum is σ = 100245600. Its totient is φ = 28608416.

The previous prime is 57250009. The next prime is 57250019. The reversal of 57250012 is 21005275.

57250012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57250019) 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, 6864 + ... + 12712.

It is an arithmetic number, because the mean of its divisors is an integer number (8353800).

Almost surely, 257250012 is an apocalyptic number.

It is an amenable number.

57250012 is a deficient number, since it is larger than the sum of its proper divisors (42995588).

57250012 is a wasteful number, since it uses less digits than its factorization.

57250012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300 (or 8298 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 57250012 is about 7566.3737681931. The cubic root of 57250012 is about 385.4119658363.

Adding to 57250012 its reverse (21005275), we get a palindrome (78255287).

The spelling of 57250012 in words is "fifty-seven million, two hundred fifty thousand, twelve".

Divisors: 1 2 4 2447 4894 5849 9788 11698 23396 14312503 28625006 57250012