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7007813 is a prime number
BaseRepresentation
bin11010101110111001000101
3111012000220122
4122232321011
53243222223
6410111325
7113364641
oct32567105
914160818
107007813
113a5708a
12241b545
1315b4947
14d05c21
159365c8
hex6aee45

7007813 has 2 divisors, whose sum is σ = 7007814. Its totient is φ = 7007812.

The previous prime is 7007809. The next prime is 7007831. The reversal of 7007813 is 3187007.

7007813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (7007831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6340324 + 667489 = 2518^2 + 817^2 .

It is a cyclic number.

It is not a de Polignac number, because 7007813 - 22 = 7007809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7007873) 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 as a sum of consecutive naturals, namely, 3503906 + 3503907.

It is an arithmetic number, because the mean of its divisors is an integer number (3503907).

Almost surely, 27007813 is an apocalyptic number.

It is an amenable number.

7007813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7007813 is an equidigital number, since it uses as much as digits as its factorization.

7007813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 7007813 is about 2647.2274175069. The cubic root of 7007813 is about 191.3642619642.

The spelling of 7007813 in words is "seven million, seven thousand, eight hundred thirteen".