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57524 = 2273197
BaseRepresentation
bin1110000010110100
32220220112
432002310
53320044
61122152
7326465
oct160264
986815
1057524
113a245
1229358
132024c
1416d6c
151209e
hexe0b4

57524 has 12 divisors (see below), whose sum is σ = 102564. Its totient is φ = 28224.

The previous prime is 57503. The next prime is 57527. The reversal of 57524 is 42575.

It can be written as a sum of positive squares in 2 ways, for example, as 47524 + 10000 = 218^2 + 100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57527) by changing a digit.

57524 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194 + ... + 390.

It is an arithmetic number, because the mean of its divisors is an integer number (8547).

257524 is an apocalyptic number.

It is an amenable number.

57524 is a deficient number, since it is larger than the sum of its proper divisors (45040).

57524 is a wasteful number, since it uses less digits than its factorization.

57524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 272 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 57524 is about 239.8416144042. The cubic root of 57524 is about 38.6025824469.

The spelling of 57524 in words is "fifty-seven thousand, five hundred twenty-four".

Divisors: 1 2 4 73 146 197 292 394 788 14381 28762 57524