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13808670 = 235460289
BaseRepresentation
bin110100101011…
…010000011110
3221222112221020
4310223100132
512013334140
61211545010
7225241341
oct64532036
927875836
1013808670
117881727
12475b166
132b26315
141b96458
15132b6d0
hexd2b41e

13808670 has 16 divisors (see below), whose sum is σ = 33140880. Its totient is φ = 3682304.

The previous prime is 13808657. The next prime is 13808681. The reversal of 13808670 is 7680831.

13808670 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230115 + ... + 230174.

It is an arithmetic number, because the mean of its divisors is an integer number (2071305).

Almost surely, 213808670 is an apocalyptic number.

13808670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13808670 is an abundant number, since it is smaller than the sum of its proper divisors (19332210).

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

13808670 is a wasteful number, since it uses less digits than its factorization.

13808670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460299.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 13808670 is about 3716.0018837455. The cubic root of 13808670 is about 239.9112519087.

The spelling of 13808670 in words is "thirteen million, eight hundred eight thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 460289 920578 1380867 2301445 2761734 4602890 6904335 13808670