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57029 = 78147
BaseRepresentation
bin1101111011000101
32220020012
431323011
53311104
61120005
7325160
oct157305
986205
1057029
1139935
1229005
131cc5b
1416ad7
1511d6e
hexdec5

57029 has 4 divisors (see below), whose sum is σ = 65184. Its totient is φ = 48876.

The previous prime is 56999. The next prime is 57037. The reversal of 57029 is 92075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57029 - 28 = 56773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56995 and 57013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4067 + ... + 4080.

It is an arithmetic number, because the mean of its divisors is an integer number (16296).

257029 is an apocalyptic number.

It is an amenable number.

57029 is a deficient number, since it is larger than the sum of its proper divisors (8155).

57029 is an equidigital number, since it uses as much as digits as its factorization.

57029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8154.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 57029 is about 238.8074538200. The cubic root of 57029 is about 38.4915369040.

The spelling of 57029 in words is "fifty-seven thousand, twenty-nine".

Divisors: 1 7 8147 57029