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13129135 = 514917623
BaseRepresentation
bin110010000101…
…010110101111
3220201000210021
4302011112233
511330113020
61145223011
7216411235
oct62052657
926630707
1013129135
117458128
124491a67
132948c26
141a5a955
1512451aa
hexc855af

13129135 has 8 divisors (see below), whose sum is σ = 15861600. Its totient is φ = 10432224.

The previous prime is 13129111. The next prime is 13129201. The reversal of 13129135 is 53192131.

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

It is a cyclic number.

It is not a de Polignac number, because 13129135 - 29 = 13128623 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8067 + ... + 9556.

It is an arithmetic number, because the mean of its divisors is an integer number (1982700).

Almost surely, 213129135 is an apocalyptic number.

13129135 is a deficient number, since it is larger than the sum of its proper divisors (2732465).

13129135 is a wasteful number, since it uses less digits than its factorization.

13129135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17777.

The product of its digits is 810, while the sum is 25.

The square root of 13129135 is about 3623.4148258238. The cubic root of 13129135 is about 235.9094680525.

The spelling of 13129135 in words is "thirteen million, one hundred twenty-nine thousand, one hundred thirty-five".

Divisors: 1 5 149 745 17623 88115 2625827 13129135