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13528818 = 2325912739
BaseRepresentation
bin110011100110…
…111011110010
3221110100001100
4303212323302
511430410233
61201545230
7222664422
oct63467362
927410040
1013528818
117700446
124645216
132a58b24
141b22482
1512c3813
hexce6ef2

13528818 has 24 divisors (see below), whose sum is σ = 29811600. Its totient is φ = 4432824.

The previous prime is 13528813. The next prime is 13528831. The reversal of 13528818 is 81882531.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (13528813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5308 + ... + 7431.

It is an arithmetic number, because the mean of its divisors is an integer number (1242150).

Almost surely, 213528818 is an apocalyptic number.

13528818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13528818 is an abundant number, since it is smaller than the sum of its proper divisors (16282782).

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

13528818 is a wasteful number, since it uses less digits than its factorization.

13528818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12806 (or 12803 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 13528818 is about 3678.1541566389. The cubic root of 13528818 is about 238.2794659857.

The spelling of 13528818 in words is "thirteen million, five hundred twenty-eight thousand, eight hundred eighteen".

Divisors: 1 2 3 6 9 18 59 118 177 354 531 1062 12739 25478 38217 76434 114651 229302 751601 1503202 2254803 4509606 6764409 13528818