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13808892 = 2231150741
BaseRepresentation
bin110100101011…
…010011111100
3221222120020110
4310223103330
512013341032
61211550020
7225242106
oct64532374
927876213
1013808892
117881909
12475b310
132b26456
141b96576
15132b7cc
hexd2b4fc

13808892 has 12 divisors (see below), whose sum is σ = 32220776. Its totient is φ = 4602960.

The previous prime is 13808887. The next prime is 13808903. The reversal of 13808892 is 29880831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 13808892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575359 + ... + 575382.

Almost surely, 213808892 is an apocalyptic number.

13808892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13808892 is an abundant number, since it is smaller than the sum of its proper divisors (18411884).

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

13808892 is a wasteful number, since it uses less digits than its factorization.

13808892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150748 (or 1150746 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 13808892 is about 3716.0317544391. The cubic root of 13808892 is about 239.9125375747.

The spelling of 13808892 in words is "thirteen million, eight hundred eight thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 12 1150741 2301482 3452223 4602964 6904446 13808892