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13285027 = 721371979
BaseRepresentation
bin110010101011…
…011010100011
3220222221122001
4302223122203
511400110102
61152424431
7220630600
oct62533243
926887561
1013285027
117554268
124548117
1329a1b82
141a9b6a7
151276487
hexcab6a3

13285027 has 12 divisors (see below), whose sum is σ = 15574680. Its totient is φ = 11298336.

The previous prime is 13285021. The next prime is 13285031. The reversal of 13285027 is 72058231.

It is not a de Polignac number, because 13285027 - 27 = 13284899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13284986 and 13285004.

It is not an unprimeable number, because it can be changed into a prime (13285021) by changing a digit.

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, 5724 + ... + 7702.

It is an arithmetic number, because the mean of its divisors is an integer number (1297890).

Almost surely, 213285027 is an apocalyptic number.

13285027 is a deficient number, since it is larger than the sum of its proper divisors (2289653).

13285027 is a wasteful number, since it uses less digits than its factorization.

13285027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130 (or 2123 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13285027 is about 3644.8630975662. The cubic root of 13285027 is about 236.8395063115.

The spelling of 13285027 in words is "thirteen million, two hundred eighty-five thousand, twenty-seven".

Divisors: 1 7 49 137 959 1979 6713 13853 96971 271123 1897861 13285027