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57102475 = 522339803
BaseRepresentation
bin1101100111010…
…1000010001011
310222110002212111
43121311002023
5104104234400
65355523151
71262235343
oct331650213
9128402774
1057102475
112a261a31
12171594b7
13baa4161
147825d23
15502e3ba
hex367508b

57102475 has 12 divisors (see below), whose sum is σ = 71118216. Its totient is φ = 45481280.

The previous prime is 57102469. The next prime is 57102497. The reversal of 57102475 is 57420175.

57102475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57102475 - 25 = 57102443 is a prime.

It is a super-2 number, since 2×571024752 = 6521385302251250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 924 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (5926518).

Almost surely, 257102475 is an apocalyptic number.

57102475 is a deficient number, since it is larger than the sum of its proper divisors (14015741).

57102475 is a wasteful number, since it uses less digits than its factorization.

57102475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10046 (or 10041 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 57102475 is about 7556.6179604371. The cubic root of 57102475 is about 385.0806038016.

The spelling of 57102475 in words is "fifty-seven million, one hundred two thousand, four hundred seventy-five".

Divisors: 1 5 25 233 1165 5825 9803 49015 245075 2284099 11420495 57102475