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BaseRepresentation
bin11010101100111111001101
3111011122012202
4122230333031
53243000023
6410011245
7113333126
oct32547715
914148182
107000013
113a51239
122416b25
1315b1227
14d0304d
15934128
hex6acfcd

7000013 has 4 divisors (see below), whose sum is σ = 7162848. Its totient is φ = 6837180.

The previous prime is 7000009. The next prime is 7000033. The reversal of 7000013 is 3100007.

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 7000013 - 22 = 7000009 is a prime.

It is a Duffinian number.

7000013 is a modest number, since divided by 13 gives 7 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 6999958 and 7000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7000003) 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, 81353 + ... + 81438.

It is an arithmetic number, because the mean of its divisors is an integer number (1790712).

Almost surely, 27000013 is an apocalyptic number.

It is an amenable number.

7000013 is a deficient number, since it is larger than the sum of its proper divisors (162835).

7000013 is a wasteful number, since it uses less digits than its factorization.

7000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162834.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 7000013 is about 2645.7537678325. The cubic root of 7000013 is about 191.2932366967.

The spelling of 7000013 in words is "seven million, thirteen", and thus it is an aban number and an uban number.

Divisors: 1 43 162791 7000013