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13680082 = 213526157
BaseRepresentation
bin110100001011…
…110111010010
3221202000112201
4310023313102
512000230312
61205113414
7224164423
oct64136722
927660481
1013680082
1177a4059
1246b886a
132aac930
141b6164a
151303557
hexd0bdd2

13680082 has 8 divisors (see below), whose sum is σ = 22098636. Its totient is φ = 6313872.

The previous prime is 13680077. The next prime is 13680089. The reversal of 13680082 is 28008631.

It can be written as a sum of positive squares in 2 ways, for example, as 13549761 + 130321 = 3681^2 + 361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13680082.

It is not an unprimeable number, because it can be changed into a prime (13680089) 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, 263053 + ... + 263104.

Almost surely, 213680082 is an apocalyptic number.

13680082 is a deficient number, since it is larger than the sum of its proper divisors (8418554).

13680082 is a wasteful number, since it uses less digits than its factorization.

13680082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526172.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 13680082 is about 3698.6594868952. The cubic root of 13680082 is about 239.1642341464.

The spelling of 13680082 in words is "thirteen million, six hundred eighty thousand, eighty-two".

Divisors: 1 2 13 26 526157 1052314 6840041 13680082