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57185810312 = 2320393505751
BaseRepresentation
bin110101010000100010…
…100011011110001000
312110121101012011020112
4311100202203132020
51414104031412222
642134254213452
74063055240021
oct652042433610
9173541164215
1057185810312
1122285998764
12b0bb4b4288
1355147023a7
142aa6c17c48
15174a663be2
hexd508a3788

57185810312 has 16 divisors (see below), whose sum is σ = 107276011200. Its totient is φ = 28578874000.

The previous prime is 57185810261. The next prime is 57185810323. The reversal of 57185810312 is 21301858175.

It is a self number, because there is not a number n which added to its sum of digits gives 57185810312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736564 + ... + 1769187.

It is an arithmetic number, because the mean of its divisors is an integer number (6704750700).

Almost surely, 257185810312 is an apocalyptic number.

It is an amenable number.

57185810312 is a deficient number, since it is larger than the sum of its proper divisors (50090200888).

57185810312 is a wasteful number, since it uses less digits than its factorization.

57185810312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507796 (or 3507792 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 57185810312 in words is "fifty-seven billion, one hundred eighty-five million, eight hundred ten thousand, three hundred twelve".

Divisors: 1 2 4 8 2039 4078 8156 16312 3505751 7011502 14023004 28046008 7148226289 14296452578 28592905156 57185810312