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13380387 = 39294801
BaseRepresentation
bin110011000010…
…101100100011
3221011210102220
4303002230203
511411133022
61154442123
7221505606
oct63025443
927153386
1013380387
117609979
124593343
132a063b7
141ac433d
15129485c
hexcc2b23

13380387 has 8 divisors (see below), whose sum is σ = 17863440. Its totient is φ = 8908800.

The previous prime is 13380371. The next prime is 13380401. The reversal of 13380387 is 78308331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13380387 - 24 = 13380371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13380307) by changing a digit.

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, 387 + ... + 5187.

It is an arithmetic number, because the mean of its divisors is an integer number (2232930).

Almost surely, 213380387 is an apocalyptic number.

13380387 is a deficient number, since it is larger than the sum of its proper divisors (4483053).

13380387 is an equidigital number, since it uses as much as digits as its factorization.

13380387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 13380387 is about 3657.9211309158. The cubic root of 13380387 is about 237.4048342639.

The spelling of 13380387 in words is "thirteen million, three hundred eighty thousand, three hundred eighty-seven".

Divisors: 1 3 929 2787 4801 14403 4460129 13380387