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13806324 = 2232754787
BaseRepresentation
bin110100101010…
…101011110100
3221222102201100
4310222223310
512013300244
61211530100
7225231450
oct64525364
927872640
1013806324
11787a994
124759930
132b2522c
141b95660
15132ab69
hexd2aaf4

13806324 has 36 divisors (see below), whose sum is σ = 39885664. Its totient is φ = 3944592.

The previous prime is 13806323. The next prime is 13806337. The reversal of 13806324 is 42360831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×138063242 = 381229164785952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13806323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27142 + ... + 27645.

Almost surely, 213806324 is an apocalyptic number.

13806324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13806324 is an abundant number, since it is smaller than the sum of its proper divisors (26079340).

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

13806324 is a wasteful number, since it uses less digits than its factorization.

13806324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54804 (or 54799 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 13806324 is about 3715.6862084950. The cubic root of 13806324 is about 239.8976647041.

The spelling of 13806324 in words is "thirteen million, eight hundred six thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 54787 109574 164361 219148 328722 383509 493083 657444 767018 986166 1150527 1534036 1972332 2301054 3451581 4602108 6903162 13806324