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13931314 = 237188261
BaseRepresentation
bin110101001001…
…001100110010
3222012210011121
4311021030302
512031300224
61214332454
7226262035
oct65111462
928183147
1013931314
117955891
1247ba12a
132b6a0a7
141bc901c
151352be4
hexd49332

13931314 has 8 divisors (see below), whose sum is σ = 21461868. Its totient is φ = 6777360.

The previous prime is 13931299. The next prime is 13931327. The reversal of 13931314 is 41313931.

It can be written as a sum of positive squares in 2 ways, for example, as 10673289 + 3258025 = 3267^2 + 1805^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 94057 + ... + 94204.

Almost surely, 213931314 is an apocalyptic number.

13931314 is a deficient number, since it is larger than the sum of its proper divisors (7530554).

13931314 is a wasteful number, since it uses less digits than its factorization.

13931314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188300.

The product of its digits is 972, while the sum is 25.

The square root of 13931314 is about 3732.4675484189. The cubic root of 13931314 is about 240.6194299942.

The spelling of 13931314 in words is "thirteen million, nine hundred thirty-one thousand, three hundred fourteen".

Divisors: 1 2 37 74 188261 376522 6965657 13931314