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57538 = 2132213
BaseRepresentation
bin1110000011000010
32220221001
432003002
53320123
61122214
7326515
oct160302
986831
1057538
113a258
122936a
1320260
1416d7c
15120ad
hexe0c2

57538 has 8 divisors (see below), whose sum is σ = 92988. Its totient is φ = 26544.

The previous prime is 57529. The next prime is 57557. The reversal of 57538 is 83575.

It can be divided in two parts, 57 and 538, that added together give a palindrome (595).

It can be written as a sum of positive squares in 2 ways, for example, as 56169 + 1369 = 237^2 + 37^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081 + ... + 1132.

257538 is an apocalyptic number.

57538 is a deficient number, since it is larger than the sum of its proper divisors (35450).

57538 is a wasteful number, since it uses less digits than its factorization.

57538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228.

The product of its digits is 4200, while the sum is 28.

The square root of 57538 is about 239.8707985562. The cubic root of 57538 is about 38.6057138490.

The spelling of 57538 in words is "fifty-seven thousand, five hundred thirty-eight".

Divisors: 1 2 13 26 2213 4426 28769 57538