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8079013 = 12976229
BaseRepresentation
bin11110110100011010100101
3120012110022201
4132310122211
54032012023
6445054501
7125445655
oct36643245
916173281
108079013
114618978
122857431
13189b3a7
141104365
15a98bad
hex7b46a5

8079013 has 4 divisors (see below), whose sum is σ = 8086540. Its totient is φ = 8071488.

The previous prime is 8079007. The next prime is 8079041. The reversal of 8079013 is 3109708.

8079013 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6749604 + 1329409 = 2598^2 + 1153^2 .

It is a cyclic number.

It is not a de Polignac number, because 8079013 - 25 = 8078981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8079073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1818 + ... + 4411.

It is an arithmetic number, because the mean of its divisors is an integer number (2021635).

Almost surely, 28079013 is an apocalyptic number.

It is an amenable number.

8079013 is a deficient number, since it is larger than the sum of its proper divisors (7527).

8079013 is a wasteful number, since it uses less digits than its factorization.

8079013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 8079013 is about 2842.3604627140. The cubic root of 8079013 is about 200.6562857561.

The spelling of 8079013 in words is "eight million, seventy-nine thousand, thirteen".

Divisors: 1 1297 6229 8079013