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13027129 = 41931091
BaseRepresentation
bin110001101100…
…011100111001
3220111211212021
4301230130321
511313332004
61143114441
7215504653
oct61543471
926454767
1013027129
117398525
124442a21
13291167b
141a316d3
151224d54
hexc6c739

13027129 has 4 divisors (see below), whose sum is σ = 13058640. Its totient is φ = 12995620.

The previous prime is 13027127. The next prime is 13027181. The reversal of 13027129 is 92172031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13027129 - 21 = 13027127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13027121) by changing a digit.

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, 15127 + ... + 15964.

It is an arithmetic number, because the mean of its divisors is an integer number (3264660).

Almost surely, 213027129 is an apocalyptic number.

It is an amenable number.

13027129 is a deficient number, since it is larger than the sum of its proper divisors (31511).

13027129 is an equidigital number, since it uses as much as digits as its factorization.

13027129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31510.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 13027129 is about 3609.3114301761. The cubic root of 13027129 is about 235.2969175856.

The spelling of 13027129 in words is "thirteen million, twenty-seven thousand, one hundred twenty-nine".

Divisors: 1 419 31091 13027129