Base | Representation |
---|---|
bin | 111111101110000… |
… | …001111101111011 |
3 | 2202111120102020112 |
4 | 333232001331323 |
5 | 4142133000131 |
6 | 254025014535 |
7 | 35330421206 |
oct | 7756017573 |
9 | 2674512215 |
10 | 1069031291 |
11 | 4a9493039 |
12 | 25a02444b |
13 | 140629ac3 |
14 | a1d9a93d |
15 | 63cba02b |
hex | 3fb81f7b |
1069031291 has 2 divisors, whose sum is σ = 1069031292. Its totient is φ = 1069031290.
The previous prime is 1069031251. The next prime is 1069031317. The reversal of 1069031291 is 1921309601.
It is a strong prime.
It is an emirp because it is prime and its reverse (1921309601) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1069031291 - 218 = 1068769147 is a prime.
It is a super-2 number, since 2×10690312912 = 2285655802274253362, which contains 22 as substring.
It is a Sophie Germain prime.
It is not a weakly prime, because it can be changed into another prime (1069031231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534515645 + 534515646.
It is an arithmetic number, because the mean of its divisors is an integer number (534515646).
Almost surely, 21069031291 is an apocalyptic number.
1069031291 is a deficient number, since it is larger than the sum of its proper divisors (1).
1069031291 is an equidigital number, since it uses as much as digits as its factorization.
1069031291 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2916, while the sum is 32.
The square root of 1069031291 is about 32696.0439655931. The cubic root of 1069031291 is about 1022.5003667680.
The spelling of 1069031291 in words is "one billion, sixty-nine million, thirty-one thousand, two hundred ninety-one".
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