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13676440 = 235341911
BaseRepresentation
bin110100001010…
…111110011000
3221201211112211
4310022332120
512000121230
61205044504
7224151001
oct64127630
927654484
1013676440
1177a1348
1246b6734
132aab08b
141b601a8
15130242a
hexd0af98

13676440 has 16 divisors (see below), whose sum is σ = 30772080. Its totient is φ = 5470560.

The previous prime is 13676431. The next prime is 13676441. The reversal of 13676440 is 4467631.

13676440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136764402 = 374090022147200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13676441) 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, 170916 + ... + 170995.

It is an arithmetic number, because the mean of its divisors is an integer number (1923255).

Almost surely, 213676440 is an apocalyptic number.

13676440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13676440 is an abundant number, since it is smaller than the sum of its proper divisors (17095640).

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

13676440 is a wasteful number, since it uses less digits than its factorization.

13676440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341922 (or 341918 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 13676440 is about 3698.1671135848. The cubic root of 13676440 is about 239.1430083124.

The spelling of 13676440 in words is "thirteen million, six hundred seventy-six thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 341911 683822 1367644 1709555 2735288 3419110 6838220 13676440