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57082 = 228541
BaseRepresentation
bin1101111011111010
32220022011
431323322
53311312
61120134
7325264
oct157372
986264
1057082
1139983
122904a
131cc9c
1416b34
1511da7
hexdefa

57082 has 4 divisors (see below), whose sum is σ = 85626. Its totient is φ = 28540.

The previous prime is 57077. The next prime is 57089. The reversal of 57082 is 28075.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53361 + 3721 = 231^2 + 61^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (57089) by changing a digit.

57082 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14269 + ... + 14272.

257082 is an apocalyptic number.

57082 is a deficient number, since it is larger than the sum of its proper divisors (28544).

57082 is a wasteful number, since it uses less digits than its factorization.

57082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28543.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 57082 is about 238.9183961105. The cubic root of 57082 is about 38.5034572709.

The spelling of 57082 in words is "fifty-seven thousand, eighty-two".

Divisors: 1 2 28541 57082