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13914399 = 34638133
BaseRepresentation
bin110101000101…
…000100011111
3222011220222010
4311011010133
512030230044
61214122303
7226161522
oct65050437
928156863
1013914399
117944104
1247b0393
132b62495
141bc2bb9
15134cbb9
hexd4511f

13914399 has 4 divisors (see below), whose sum is σ = 18552536. Its totient is φ = 9276264.

The previous prime is 13914391. The next prime is 13914401. The reversal of 13914399 is 99341931.

13914399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13914399 - 23 = 13914391 is a prime.

It is a super-2 number, since 2×139143992 = 387220999062402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13914391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2319064 + ... + 2319069.

It is an arithmetic number, because the mean of its divisors is an integer number (4638134).

Almost surely, 213914399 is an apocalyptic number.

13914399 is a deficient number, since it is larger than the sum of its proper divisors (4638137).

13914399 is an equidigital number, since it uses as much as digits as its factorization.

13914399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638136.

The product of its digits is 26244, while the sum is 39.

The square root of 13914399 is about 3730.2009329257. The cubic root of 13914399 is about 240.5220061612.

The spelling of 13914399 in words is "thirteen million, nine hundred fourteen thousand, three hundred ninety-nine".

Divisors: 1 3 4638133 13914399