Base | Representation |
---|---|
bin | 100000011100010010… |
… | …0000001000011011011 |
3 | 20122211022110120020221 |
4 | 1000320210001003123 |
5 | 2120140110123311 |
6 | 52001044300511 |
7 | 5014306663135 |
oct | 1007044010333 |
9 | 218738416227 |
10 | 69668442331 |
11 | 27601023974 |
12 | 116039a1737 |
13 | 675384a897 |
14 | 352c98a055 |
15 | 1c2b46b671 |
hex | 10389010db |
69668442331 has 2 divisors, whose sum is σ = 69668442332. Its totient is φ = 69668442330.
The previous prime is 69668442313. The next prime is 69668442367. The reversal of 69668442331 is 13324486696.
Together with previous prime (69668442313) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 69668442331 - 213 = 69668434139 is a prime.
It is a super-2 number, since 2×696684423312 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (69668442731) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34834221165 + 34834221166.
It is an arithmetic number, because the mean of its divisors is an integer number (34834221166).
Almost surely, 269668442331 is an apocalyptic number.
69668442331 is a deficient number, since it is larger than the sum of its proper divisors (1).
69668442331 is an equidigital number, since it uses as much as digits as its factorization.
69668442331 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 4478976, while the sum is 52.
The spelling of 69668442331 in words is "sixty-nine billion, six hundred sixty-eight million, four hundred forty-two thousand, three hundred thirty-one".
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