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8230009181 is a prime number
BaseRepresentation
bin1111010101000101…
…11111100101011101
3210020120012210011212
413222202333211131
5113323340243211
63440353354205
7410642631602
oct75242774535
923216183155
108230009181
113543697789
121718268965
13a120a6624
1458105c6a9
153327d138b
hex1ea8bf95d

8230009181 has 2 divisors, whose sum is σ = 8230009182. Its totient is φ = 8230009180.

The previous prime is 8230009159. The next prime is 8230009187. The reversal of 8230009181 is 1819000328.

8230009181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7367647225 + 862361956 = 85835^2 + 29366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8230009181 is a prime.

It is a super-2 number, since 2×82300091812 (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8230009187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115004590 + 4115004591.

It is an arithmetic number, because the mean of its divisors is an integer number (4115004591).

Almost surely, 28230009181 is an apocalyptic number.

It is an amenable number.

8230009181 is a deficient number, since it is larger than the sum of its proper divisors (1).

8230009181 is an equidigital number, since it uses as much as digits as its factorization.

8230009181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 8230009181 is about 90719.3980414332. The cubic root of 8230009181 is about 2018.9866155880.

The spelling of 8230009181 in words is "eight billion, two hundred thirty million, nine thousand, one hundred eighty-one".