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13806744 = 233782183
BaseRepresentation
bin110100101010…
…110010011000
3221222110021220
4310222302120
512013303434
61211532040
7225232620
oct64526230
927873256
1013806744
117880236
12475a020
132b25493
141b95880
15132ad49
hexd2ac98

13806744 has 32 divisors (see below), whose sum is σ = 39448320. Its totient is φ = 3944736.

The previous prime is 13806733. The next prime is 13806761. The reversal of 13806744 is 44760831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40924 + ... + 41259.

It is an arithmetic number, because the mean of its divisors is an integer number (1232760).

Almost surely, 213806744 is an apocalyptic number.

13806744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13806744 is an abundant number, since it is smaller than the sum of its proper divisors (25641576).

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

13806744 is a wasteful number, since it uses less digits than its factorization.

13806744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82199 (or 82195 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 13806744 is about 3715.7427252166. The cubic root of 13806744 is about 239.9000973090.

The spelling of 13806744 in words is "thirteen million, eight hundred six thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 82183 164366 246549 328732 493098 575281 657464 986196 1150562 1725843 1972392 2301124 3451686 4602248 6903372 13806744