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57731252 = 22171376197
BaseRepresentation
bin1101110000111…
…0100010110100
311000122001101112
43130032202310
5104234400002
65421214152
71300464455
oct334164264
9130561345
1057731252
112a651387
1217401358
13bc64407
14794b12c
155105852
hex370e8b4

57731252 has 24 divisors (see below), whose sum is σ = 107770824. Its totient is φ = 26964992.

The previous prime is 57731251. The next prime is 57731263. The reversal of 57731252 is 25213775.

57731252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14776336 + 42954916 = 3844^2 + 6554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57731251) 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, 6218 + ... + 12414.

It is an arithmetic number, because the mean of its divisors is an integer number (4490451).

Almost surely, 257731252 is an apocalyptic number.

It is an amenable number.

57731252 is a deficient number, since it is larger than the sum of its proper divisors (50039572).

57731252 is a wasteful number, since it uses less digits than its factorization.

57731252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6355 (or 6353 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 57731252 is about 7598.1084488180. The cubic root of 57731252 is about 386.4888702336.

The spelling of 57731252 in words is "fifty-seven million, seven hundred thirty-one thousand, two hundred fifty-two".