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57388 = 2214347
BaseRepresentation
bin1110000000101100
32220201111
432000230
53314023
61121404
7326212
oct160054
986644
1057388
113a131
1229264
1320176
1416cb2
151200d
hexe02c

57388 has 6 divisors (see below), whose sum is σ = 100436. Its totient is φ = 28692.

The previous prime is 57383. The next prime is 57389. The reversal of 57388 is 88375.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (57383) by changing a digit.

57388 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, 7170 + ... + 7177.

257388 is an apocalyptic number.

It is an amenable number.

57388 is a deficient number, since it is larger than the sum of its proper divisors (43048).

57388 is a wasteful number, since it uses less digits than its factorization.

57388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14351 (or 14349 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 57388 is about 239.5579261891. The cubic root of 57388 is about 38.5721366386.

The spelling of 57388 in words is "fifty-seven thousand, three hundred eighty-eight".

Divisors: 1 2 4 14347 28694 57388