Base | Representation |
---|---|
bin | 1101001100101100… |
… | …11111001010111001 |
3 | 200021211022222222202 |
4 | 12212112133022321 |
5 | 104002441124433 |
6 | 3131042555545 |
7 | 340410662153 |
oct | 64626371271 |
9 | 20254288882 |
10 | 7085879993 |
11 | 3006881575 |
12 | 1459068bb5 |
13 | 88c0447ca |
14 | 4b3113ad3 |
15 | 2b712eee8 |
hex | 1a659f2b9 |
7085879993 has 2 divisors, whose sum is σ = 7085879994. Its totient is φ = 7085879992.
The previous prime is 7085879917. The next prime is 7085880013. The reversal of 7085879993 is 3999785807.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 3555975424 + 3529904569 = 59632^2 + 59413^2 .
It is an emirp because it is prime and its reverse (3999785807) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7085879993 - 212 = 7085875897 is a prime.
It is not a weakly prime, because it can be changed into another prime (7085879693) 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, 3542939996 + 3542939997.
It is an arithmetic number, because the mean of its divisors is an integer number (3542939997).
Almost surely, 27085879993 is an apocalyptic number.
It is an amenable number.
7085879993 is a deficient number, since it is larger than the sum of its proper divisors (1).
7085879993 is an equidigital number, since it uses as much as digits as its factorization.
7085879993 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 34292160, while the sum is 65.
The square root of 7085879993 is about 84177.6692062687. The cubic root of 7085879993 is about 1920.7223837922.
The spelling of 7085879993 in words is "seven billion, eighty-five million, eight hundred seventy-nine thousand, nine hundred ninety-three".
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