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13808984 = 237235227
BaseRepresentation
bin110100101011…
…010101011000
3221222120100212
4310223111120
512013341414
61211550252
7225242300
oct64532530
927876325
1013808984
117881992
12475b388
132b264c7
141b96600
15132b83e
hexd2b558

13808984 has 24 divisors (see below), whose sum is σ = 30119940. Its totient is φ = 5917968.

The previous prime is 13808969. The next prime is 13809011. The reversal of 13808984 is 48980831.

13808984 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 2×138089842 = 381376078224512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17222 + ... + 18005.

Almost surely, 213808984 is an apocalyptic number.

13808984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13808984 is an abundant number, since it is smaller than the sum of its proper divisors (16310956).

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

13808984 is a wasteful number, since it uses less digits than its factorization.

13808984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35247 (or 35236 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 13808984 is about 3716.0441332148. The cubic root of 13808984 is about 239.9130703692.

The spelling of 13808984 in words is "thirteen million, eight hundred eight thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 35227 70454 140908 246589 281816 493178 986356 1726123 1972712 3452246 6904492 13808984