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13026957 = 34342319
BaseRepresentation
bin110001101100…
…011010001101
3220111211121220
4301230122031
511313330312
61143113553
7215504316
oct61543215
926454556
1013026957
117398389
1244428b9
132911578
141a3160d
151224c8c
hexc6c68d

13026957 has 4 divisors (see below), whose sum is σ = 17369280. Its totient is φ = 8684636.

The previous prime is 13026953. The next prime is 13026967. The reversal of 13026957 is 75962031.

13026957 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 13026957 - 22 = 13026953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13026953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2171157 + ... + 2171162.

It is an arithmetic number, because the mean of its divisors is an integer number (4342320).

Almost surely, 213026957 is an apocalyptic number.

It is an amenable number.

13026957 is a deficient number, since it is larger than the sum of its proper divisors (4342323).

13026957 is an equidigital number, since it uses as much as digits as its factorization.

13026957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342322.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 13026957 is about 3609.2876028380. The cubic root of 13026957 is about 235.2958820223.

Adding to 13026957 its reverse (75962031), we get a palindrome (88988988).

The spelling of 13026957 in words is "thirteen million, twenty-six thousand, nine hundred fifty-seven".

Divisors: 1 3 4342319 13026957