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57297 = 371269
BaseRepresentation
bin1101111111010001
32220121010
431333101
53313142
61121133
7326022
oct157721
986533
1057297
113a059
12291a9
1320106
1416c49
1511e9c
hexdfd1

57297 has 8 divisors (see below), whose sum is σ = 77760. Its totient is φ = 37520.

The previous prime is 57287. The next prime is 57301. The reversal of 57297 is 79275.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57297 - 28 = 57041 is a prime.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (57287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79 + ... + 347.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

257297 is an apocalyptic number.

It is an amenable number.

57297 is a deficient number, since it is larger than the sum of its proper divisors (20463).

57297 is a wasteful number, since it uses less digits than its factorization.

57297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its digits is 4410, while the sum is 30.

The square root of 57297 is about 239.3679176498. The cubic root of 57297 is about 38.5517379411.

The spelling of 57297 in words is "fifty-seven thousand, two hundred ninety-seven".

Divisors: 1 3 71 213 269 807 19099 57297