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13428584 = 2313129121
BaseRepresentation
bin110011001110…
…011101101000
3221021020112222
4303032131220
511414203314
61155453212
7222066251
oct63163550
927236488
1013428584
117642104
1245b7208
132a22310
141ad7b28
1512a3c8e
hexcce768

13428584 has 16 divisors (see below), whose sum is σ = 27115620. Its totient is φ = 6197760.

The previous prime is 13428563. The next prime is 13428617. The reversal of 13428584 is 48582431.

It can be written as a sum of positive squares in 2 ways, for example, as 12040900 + 1387684 = 3470^2 + 1178^2 .

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, 64457 + ... + 64664.

Almost surely, 213428584 is an apocalyptic number.

It is an amenable number.

13428584 is an abundant number, since it is smaller than the sum of its proper divisors (13687036).

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

13428584 is a wasteful number, since it uses less digits than its factorization.

13428584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129140 (or 129136 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 13428584 is about 3664.5032405498. The cubic root of 13428584 is about 237.6895417668.

The spelling of 13428584 in words is "thirteen million, four hundred twenty-eight thousand, five hundred eighty-four".

Divisors: 1 2 4 8 13 26 52 104 129121 258242 516484 1032968 1678573 3357146 6714292 13428584