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13145714 = 26572857
BaseRepresentation
bin110010001001…
…011001110010
3220201212112022
4302021121302
511331130324
61145431442
7216510461
oct62113162
926655468
1013145714
11746962a
12449b582
13295363a
141a629d8
15124a05e
hexc89672

13145714 has 4 divisors (see below), whose sum is σ = 19718574. Its totient is φ = 6572856.

The previous prime is 13145681. The next prime is 13145723. The reversal of 13145714 is 41754131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41754131 = 231815397.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 1809025 = 3367^2 + 1345^2 .

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 as a sum of consecutive naturals, namely, 3286427 + ... + 3286430.

Almost surely, 213145714 is an apocalyptic number.

13145714 is a deficient number, since it is larger than the sum of its proper divisors (6572860).

13145714 is an equidigital number, since it uses as much as digits as its factorization.

13145714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572859.

The product of its digits is 1680, while the sum is 26.

The square root of 13145714 is about 3625.7018630880. The cubic root of 13145714 is about 236.0087256182.

Adding to 13145714 its reverse (41754131), we get a palindrome (54899845).

The spelling of 13145714 in words is "thirteen million, one hundred forty-five thousand, seven hundred fourteen".

Divisors: 1 2 6572857 13145714