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8530307813 is a prime number
BaseRepresentation
bin1111111000111001…
…00010101011100101
3211000111021112110102
413330130202223211
5114432224322223
63530242033445
7421250264036
oct77434425345
924014245412
108530307813
113688155575
1217a0948885
13a5c37a321
145accaca8d
1534dd4d928
hex1fc722ae5

8530307813 has 2 divisors, whose sum is σ = 8530307814. Its totient is φ = 8530307812.

The previous prime is 8530307803. The next prime is 8530307831. The reversal of 8530307813 is 3187030358.

It is a happy number.

Together with next prime (8530307831) 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., 8207997604 + 322310209 = 90598^2 + 17953^2 .

It is a cyclic number.

It is not a de Polignac number, because 8530307813 - 218 = 8530045669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8530307803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4265153906 + 4265153907.

It is an arithmetic number, because the mean of its divisors is an integer number (4265153907).

Almost surely, 28530307813 is an apocalyptic number.

It is an amenable number.

8530307813 is a deficient number, since it is larger than the sum of its proper divisors (1).

8530307813 is an equidigital number, since it uses as much as digits as its factorization.

8530307813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 8530307813 is about 92359.6655093553. The cubic root of 8530307813 is about 2043.2502823378.

The spelling of 8530307813 in words is "eight billion, five hundred thirty million, three hundred seven thousand, eight hundred thirteen".