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13428508 = 2229115763
BaseRepresentation
bin110011001110…
…011100011100
3221021020110011
4303032130130
511414203013
61155453004
7222066112
oct63163434
927236404
1013428508
117642045
1245b7164
132a22282
141ad7ab2
1512a3c3d
hexcce71c

13428508 has 12 divisors (see below), whose sum is σ = 24310440. Its totient is φ = 6482672.

The previous prime is 13428491. The next prime is 13428509. The reversal of 13428508 is 80582431.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13428508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428509) 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 3 ways as a sum of consecutive naturals, for example, 57766 + ... + 57997.

It is an arithmetic number, because the mean of its divisors is an integer number (2025870).

Almost surely, 213428508 is an apocalyptic number.

It is an amenable number.

13428508 is a deficient number, since it is larger than the sum of its proper divisors (10881932).

13428508 is a wasteful number, since it uses less digits than its factorization.

13428508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115796 (or 115794 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 13428508 is about 3664.4928707803. The cubic root of 13428508 is about 237.6890933592.

The spelling of 13428508 in words is "thirteen million, four hundred twenty-eight thousand, five hundred eight".

Divisors: 1 2 4 29 58 116 115763 231526 463052 3357127 6714254 13428508