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6913 = 31223
BaseRepresentation
bin1101100000001
3100111001
41230001
5210123
652001
726104
oct15401
910431
106913
115215
124001
1331ba
14273b
1520ad
hex1b01

6913 has 4 divisors (see below), whose sum is σ = 7168. Its totient is φ = 6660.

The previous prime is 6911. The next prime is 6917. The reversal of 6913 is 3196.

6913 is nontrivially palindromic in base 3.

6913 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

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 6913 - 21 = 6911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81 + ... + 142.

It is an arithmetic number, because the mean of its divisors is an integer number (1792).

It is a Proth number, since it is equal to 27 ⋅ 28 + 1 and 27 < 28.

26913 is an apocalyptic number.

It is an amenable number.

6913 is a deficient number, since it is larger than the sum of its proper divisors (255).

6913 is a wasteful number, since it uses less digits than its factorization.

6913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254.

The product of its digits is 162, while the sum is 19.

The square root of 6913 is about 83.1444526111. The cubic root of 6913 is about 19.0497312142.

It can be divided in two parts, 6 and 913, that added together give a palindrome (919).

The spelling of 6913 in words is "six thousand, nine hundred thirteen".

Divisors: 1 31 223 6913