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13680582 = 232280097
BaseRepresentation
bin110100001011…
…111111000110
3221202001020020
4310023333012
512000234312
61205120010
7224166036
oct64137706
927661206
1013680582
1177a4473
1246b9006
132aacc26
141b618c6
15130378c
hexd0bfc6

13680582 has 8 divisors (see below), whose sum is σ = 27361176. Its totient is φ = 4560192.

The previous prime is 13680577. The next prime is 13680587. The reversal of 13680582 is 28508631.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13680577) and next prime (13680587).

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

13680582 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140043 + ... + 1140054.

It is an arithmetic number, because the mean of its divisors is an integer number (3420147).

Almost surely, 213680582 is an apocalyptic number.

13680582 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13680582 is a wasteful number, since it uses less digits than its factorization.

13680582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2280102.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 13680582 is about 3698.7270783338. The cubic root of 13680582 is about 239.1671478877.

The spelling of 13680582 in words is "thirteen million, six hundred eighty thousand, five hundred eighty-two".

Divisors: 1 2 3 6 2280097 4560194 6840291 13680582