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13285328 = 247118619
BaseRepresentation
bin110010101011…
…011111010000
3220222222001012
4302223133100
511400112303
61152430052
7220631510
oct62533720
926888035
1013285328
117554511
124548328
1329a2054
141a9b840
1512765d8
hexcab7d0

13285328 has 20 divisors (see below), whose sum is σ = 29417760. Its totient is φ = 5693664.

The previous prime is 13285319. The next prime is 13285333. The reversal of 13285328 is 82358231.

It is a junction number, because it is equal to n+sod(n) for n = 13285294 and 13285303.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 59198 + ... + 59421.

It is an arithmetic number, because the mean of its divisors is an integer number (1470888).

Almost surely, 213285328 is an apocalyptic number.

It is an amenable number.

13285328 is an abundant number, since it is smaller than the sum of its proper divisors (16132432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13285328 is a wasteful number, since it uses less digits than its factorization.

13285328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118634 (or 118628 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 13285328 is about 3644.9043883208. The cubic root of 13285328 is about 236.8412949957.

The spelling of 13285328 in words is "thirteen million, two hundred eighty-five thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 118619 237238 474476 830333 948952 1660666 1897904 3321332 6642664 13285328