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6806013 = 32268671
BaseRepresentation
bin11001111101100111111101
3110210210002120
4121331213331
53220243023
6401513153
7111564414
oct31754775
913723076
106806013
113929505
1223427b9
131543b36
14c9247b
158e68e3
hex67d9fd

6806013 has 4 divisors (see below), whose sum is σ = 9074688. Its totient is φ = 4537340.

The previous prime is 6805991. The next prime is 6806017. The reversal of 6806013 is 3106086.

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 6806013 - 29 = 6805501 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6806017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134333 + ... + 1134338.

It is an arithmetic number, because the mean of its divisors is an integer number (2268672).

Almost surely, 26806013 is an apocalyptic number.

It is an amenable number.

6806013 is a deficient number, since it is larger than the sum of its proper divisors (2268675).

6806013 is a wasteful number, since it uses less digits than its factorization.

6806013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268674.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 6806013 is about 2608.8336474371. The cubic root of 6806013 is about 189.5094733767.

The spelling of 6806013 in words is "six million, eight hundred six thousand, thirteen".

Divisors: 1 3 2268671 6806013