Base | Representation |
---|---|
bin | 100000001000011011… |
… | …1111010011010100101 |
3 | 20121002220111201021211 |
4 | 1000100313322122211 |
5 | 2112304124210011 |
6 | 51411020311421 |
7 | 4661643106444 |
oct | 1002067723245 |
9 | 217086451254 |
10 | 69002569381 |
11 | 2729a173749 |
12 | 114589a2571 |
13 | 66788c9b15 |
14 | 34a8376d5b |
15 | 1bdcc8ab21 |
hex | 1010dfa6a5 |
69002569381 has 2 divisors, whose sum is σ = 69002569382. Its totient is φ = 69002569380.
The previous prime is 69002569379. The next prime is 69002569429. The reversal of 69002569381 is 18396520096.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 68727341281 + 275228100 = 262159^2 + 16590^2 .
It is a cyclic number.
It is not a de Polignac number, because 69002569381 - 21 = 69002569379 is a prime.
It is a super-2 number, since 2×690025693812 (a number of 22 digits) contains 22 as substring.
Together with 69002569379, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (69002569351) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34501284690 + 34501284691.
It is an arithmetic number, because the mean of its divisors is an integer number (34501284691).
Almost surely, 269002569381 is an apocalyptic number.
It is an amenable number.
69002569381 is a deficient number, since it is larger than the sum of its proper divisors (1).
69002569381 is an equidigital number, since it uses as much as digits as its factorization.
69002569381 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 699840, while the sum is 49.
The spelling of 69002569381 in words is "sixty-nine billion, two million, five hundred sixty-nine thousand, three hundred eighty-one".
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