Base | Representation |
---|---|
bin | 1001010000001… |
… | …0011011100101 |
3 | 2201000121120021 |
4 | 2110002123211 |
5 | 34413313034 |
6 | 3503435141 |
7 | 650566504 |
oct | 224023345 |
9 | 81017507 |
10 | 38807269 |
11 | 1a9a6526 |
12 | 10bb5ab1 |
13 | 80699a7 |
14 | 522283b |
15 | 36186b4 |
hex | 25026e5 |
38807269 has 2 divisors, whose sum is σ = 38807270. Its totient is φ = 38807268.
The previous prime is 38807261. The next prime is 38807299. The reversal of 38807269 is 96270883.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 38750625 + 56644 = 6225^2 + 238^2 .
It is an emirp because it is prime and its reverse (96270883) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38807269 - 23 = 38807261 is a prime.
It is a super-2 number, since 2×388072692 = 3012008254476722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38807261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19403634 + 19403635.
It is an arithmetic number, because the mean of its divisors is an integer number (19403635).
Almost surely, 238807269 is an apocalyptic number.
It is an amenable number.
38807269 is a deficient number, since it is larger than the sum of its proper divisors (1).
38807269 is an equidigital number, since it uses as much as digits as its factorization.
38807269 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 145152, while the sum is 43.
The square root of 38807269 is about 6229.5480574437. The cubic root of 38807269 is about 338.5615962823.
The spelling of 38807269 in words is "thirty-eight million, eight hundred seven thousand, two hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •