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57310906 = 2181115823
BaseRepresentation
bin1101101010011…
…1111010111010
310222211200210011
43122213322322
5104132422111
65404212134
71264064122
oct332477272
9128750704
1057310906
112a394594
121723a04a
13bb47ca3
14787bc82
155071021
hex36a7eba

57310906 has 8 divisors (see below), whose sum is σ = 86019264. Its totient is φ = 28637820.

The previous prime is 57310879. The next prime is 57310943. The reversal of 57310906 is 60901375.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4290 + ... + 11533.

It is an arithmetic number, because the mean of its divisors is an integer number (10752408).

Almost surely, 257310906 is an apocalyptic number.

57310906 is a deficient number, since it is larger than the sum of its proper divisors (28708358).

57310906 is a wasteful number, since it uses less digits than its factorization.

57310906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17636.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 57310906 is about 7570.3966870964. The cubic root of 57310906 is about 385.5485652844.

The spelling of 57310906 in words is "fifty-seven million, three hundred ten thousand, nine hundred six".

Divisors: 1 2 1811 3622 15823 31646 28655453 57310906