Base | Representation |
---|---|
bin | 110010000101… |
… | …011010000111 |
3 | 220201001002021 |
4 | 302011122013 |
5 | 11330114401 |
6 | 1145224011 |
7 | 216411664 |
oct | 62053207 |
9 | 26631067 |
10 | 13129351 |
11 | 7458304 |
12 | 4492007 |
13 | 2949061 |
14 | 1a5aa6b |
15 | 12452a1 |
hex | c85687 |
13129351 has 2 divisors, whose sum is σ = 13129352. Its totient is φ = 13129350.
The previous prime is 13129349. The next prime is 13129367. The reversal of 13129351 is 15392131.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 13129351 - 21 = 13129349 is a prime.
Together with 13129349, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13129301) 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 as a sum of consecutive naturals, namely, 6564675 + 6564676.
It is an arithmetic number, because the mean of its divisors is an integer number (6564676).
Almost surely, 213129351 is an apocalyptic number.
13129351 is a deficient number, since it is larger than the sum of its proper divisors (1).
13129351 is an equidigital number, since it uses as much as digits as its factorization.
13129351 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 810, while the sum is 25.
The square root of 13129351 is about 3623.4446318386. Note that the first 3 decimals coincide. The cubic root of 13129351 is about 235.9107617697.
The spelling of 13129351 in words is "thirteen million, one hundred twenty-nine thousand, three hundred fifty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •