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13380288 = 263227307
BaseRepresentation
bin110011000010…
…101011000000
3221011210022020
4303002223000
511411132123
61154441440
7221505405
oct63025300
927153266
1013380288
117609899
124593280
132a0633c
141ac42ac
1512947e3
hexcc2ac0

13380288 has 56 divisors (see below), whose sum is σ = 35673792. Its totient is φ = 4425984.

The previous prime is 13380239. The next prime is 13380299. The reversal of 13380288 is 88208331.

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, 43431 + ... + 43737.

It is an arithmetic number, because the mean of its divisors is an integer number (637032).

Almost surely, 213380288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13380288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17836896).

13380288 is an abundant number, since it is smaller than the sum of its proper divisors (22293504).

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

13380288 is a wasteful number, since it uses less digits than its factorization.

13380288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 13380288 is about 3657.9075986143. The cubic root of 13380288 is about 237.4042487518.

The spelling of 13380288 in words is "thirteen million, three hundred eighty thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 227 307 454 614 681 908 921 1228 1362 1816 1842 2456 2724 3632 3684 4912 5448 7264 7368 9824 10896 14528 14736 19648 21792 29472 43584 58944 69689 139378 209067 278756 418134 557512 836268 1115024 1672536 2230048 3345072 4460096 6690144 13380288