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13025971 = 71860853
BaseRepresentation
bin110001101100…
…001010110011
3220111210021101
4301230022303
511313312341
61143105231
7215501410
oct61541263
926453241
1013025971
117397672
124442217
132910c9a
141a31107
151224831
hexc6c2b3

13025971 has 4 divisors (see below), whose sum is σ = 14886832. Its totient is φ = 11165112.

The previous prime is 13025953. The next prime is 13025977. The reversal of 13025971 is 17952031.

13025971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13025971 - 29 = 13025459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13025977) 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, 930420 + ... + 930433.

It is an arithmetic number, because the mean of its divisors is an integer number (3721708).

Almost surely, 213025971 is an apocalyptic number.

13025971 is a deficient number, since it is larger than the sum of its proper divisors (1860861).

13025971 is an equidigital number, since it uses as much as digits as its factorization.

13025971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860860.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 13025971 is about 3609.1510082012. The cubic root of 13025971 is about 235.2899454199.

The spelling of 13025971 in words is "thirteen million, twenty-five thousand, nine hundred seventy-one".

Divisors: 1 7 1860853 13025971