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13133980 = 2251514349
BaseRepresentation
bin110010000110…
…100010011100
3220201021102201
4302012202130
511330241410
61145301244
7216431326
oct62064234
926637381
1013133980
117460832
124494824
13294b1b2
141a5c616
15124683a
hexc8689c

13133980 has 24 divisors (see below), whose sum is σ = 27770400. Its totient is φ = 5217600.

The previous prime is 13133969. The next prime is 13134007. The reversal of 13133980 is 8933131.

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, 846 + ... + 5194.

It is an arithmetic number, because the mean of its divisors is an integer number (1157100).

Almost surely, 213133980 is an apocalyptic number.

13133980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13133980 is an abundant number, since it is smaller than the sum of its proper divisors (14636420).

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

13133980 is a wasteful number, since it uses less digits than its factorization.

13133980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509 (or 4507 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13133980 is about 3624.0833323752. The cubic root of 13133980 is about 235.9384834396.

The spelling of 13133980 in words is "thirteen million, one hundred thirty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 4349 8698 17396 21745 43490 86980 656699 1313398 2626796 3283495 6566990 13133980