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13982660 = 225699133
BaseRepresentation
bin110101010101…
…101111000100
3222022101121022
4311111233010
512034421120
61215410312
7226564526
oct65255704
928271538
1013982660
11799041a
124823998
132b87583
141bdda16
151363025
hexd55bc4

13982660 has 12 divisors (see below), whose sum is σ = 29363628. Its totient is φ = 5593056.

The previous prime is 13982659. The next prime is 13982677. The reversal of 13982660 is 6628931.

It can be written as a sum of positive squares in 2 ways, for example, as 5607424 + 8375236 = 2368^2 + 2894^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13982660.

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, 349547 + ... + 349586.

It is an arithmetic number, because the mean of its divisors is an integer number (2446969).

Almost surely, 213982660 is an apocalyptic number.

13982660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13982660 is an abundant number, since it is smaller than the sum of its proper divisors (15380968).

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

13982660 is a wasteful number, since it uses less digits than its factorization.

13982660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699142 (or 699140 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 13982660 is about 3739.3395138714. The cubic root of 13982660 is about 240.9146808632.

The spelling of 13982660 in words is "thirteen million, nine hundred eighty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 699133 1398266 2796532 3495665 6991330 13982660