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13091713 = 19168543
BaseRepresentation
bin110001111100…
…001110000001
3220122010110021
4301330032001
511322413323
61144333441
7216164155
oct61741601
926563407
1013091713
117431aa8
124474281
132934b9b
141a4b065
15123905d
hexc7c381

13091713 has 4 divisors (see below), whose sum is σ = 13160448. Its totient is φ = 13022980.

The previous prime is 13091699. The next prime is 13091723. The reversal of 13091713 is 31719031.

13091713 is digitally balanced in base 3, 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, 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 13091713 - 29 = 13091201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13091723) 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 in 3 ways as a sum of consecutive naturals, for example, 34081 + ... + 34462.

It is an arithmetic number, because the mean of its divisors is an integer number (3290112).

Almost surely, 213091713 is an apocalyptic number.

It is an amenable number.

13091713 is a deficient number, since it is larger than the sum of its proper divisors (68735).

13091713 is an equidigital number, since it uses as much as digits as its factorization.

13091713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68734.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 13091713 is about 3618.2472275952. The cubic root of 13091713 is about 235.6851170168.

The spelling of 13091713 in words is "thirteen million, ninety-one thousand, seven hundred thirteen".

Divisors: 1 191 68543 13091713