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13129714 = 213504989
BaseRepresentation
bin110010000101…
…011111110010
3220201001120201
4302011133302
511330122324
61145225414
7216413023
oct62053762
926631521
1013129714
117458604
12449226a
132949280
141a5ac4a
151245444
hexc857f2

13129714 has 8 divisors (see below), whose sum is σ = 21209580. Its totient is φ = 6059856.

The previous prime is 13129693. The next prime is 13129747. The reversal of 13129714 is 41792131.

It can be written as a sum of positive squares in 2 ways, for example, as 9828225 + 3301489 = 3135^2 + 1817^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252469 + ... + 252520.

Almost surely, 213129714 is an apocalyptic number.

13129714 is a deficient number, since it is larger than the sum of its proper divisors (8079866).

13129714 is a wasteful number, since it uses less digits than its factorization.

13129714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505004.

The product of its digits is 1512, while the sum is 28.

The square root of 13129714 is about 3623.4947219501. The cubic root of 13129714 is about 235.9129359015.

It can be divided in two parts, 1312 and 9714, that added together give a triangular number (11026 = T148).

The spelling of 13129714 in words is "thirteen million, one hundred twenty-nine thousand, seven hundred fourteen".

Divisors: 1 2 13 26 504989 1009978 6564857 13129714