Base | Representation |
---|---|
bin | 1101000001010111… |
… | …10111111001011001 |
3 | 200001012110121022102 |
4 | 12200223313321121 |
5 | 103304122314001 |
6 | 3113405333145 |
7 | 335145005111 |
oct | 64053677131 |
9 | 20035417272 |
10 | 6990823001 |
11 | 2a68156878 |
12 | 14312671b5 |
13 | 875441b76 |
14 | 4a464c041 |
15 | 2adb04e6b |
hex | 1a0af7e59 |
6990823001 has 2 divisors, whose sum is σ = 6990823002. Its totient is φ = 6990823000.
The previous prime is 6990822973. The next prime is 6990823003. The reversal of 6990823001 is 1003280996.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6773290000 + 217533001 = 82300^2 + 14749^2 .
It is a cyclic number.
It is not a de Polignac number, because 6990823001 - 210 = 6990821977 is a prime.
Together with 6990823003, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (6990823003) 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, 3495411500 + 3495411501.
It is an arithmetic number, because the mean of its divisors is an integer number (3495411501).
Almost surely, 26990823001 is an apocalyptic number.
It is an amenable number.
6990823001 is a deficient number, since it is larger than the sum of its proper divisors (1).
6990823001 is an equidigital number, since it uses as much as digits as its factorization.
6990823001 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 23328, while the sum is 38.
The square root of 6990823001 is about 83611.1416080417. The cubic root of 6990823001 is about 1912.0948663598.
The spelling of 6990823001 in words is "six billion, nine hundred ninety million, eight hundred twenty-three thousand, one".
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