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13688046 = 232760447
BaseRepresentation
bin110100001101…
…110011101110
3221202102110200
4310031303232
512001004141
61205214330
7224226561
oct64156356
927672420
1013688046
1177aa039
1247013a6
132ab3448
141b644d8
151305ab6
hexd0dcee

13688046 has 12 divisors (see below), whose sum is σ = 29657472. Its totient is φ = 4562676.

The previous prime is 13688041. The next prime is 13688047. The reversal of 13688046 is 64088631.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13688046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380206 + ... + 380241.

It is an arithmetic number, because the mean of its divisors is an integer number (2471456).

Almost surely, 213688046 is an apocalyptic number.

13688046 is an abundant number, since it is smaller than the sum of its proper divisors (15969426).

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

13688046 is a wasteful number, since it uses less digits than its factorization.

13688046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760455 (or 760452 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 13688046 is about 3699.7359365230. The cubic root of 13688046 is about 239.2106357802.

The spelling of 13688046 in words is "thirteen million, six hundred eighty-eight thousand, forty-six".

Divisors: 1 2 3 6 9 18 760447 1520894 2281341 4562682 6844023 13688046