Base | Representation |
---|---|
bin | 11010000111110… |
… | …000101100100011 |
3 | 1010112122000010021 |
4 | 122013300230203 |
5 | 1344142221313 |
6 | 111253014311 |
7 | 13600665466 |
oct | 3207605443 |
9 | 1115560107 |
10 | 438242083 |
11 | 205415844 |
12 | 102924397 |
13 | 6ca40c56 |
14 | 422bb2dd |
15 | 2871978d |
hex | 1a1f0b23 |
438242083 has 2 divisors, whose sum is σ = 438242084. Its totient is φ = 438242082.
The previous prime is 438242081. The next prime is 438242159. The reversal of 438242083 is 380242834.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 438242083 - 21 = 438242081 is a prime.
It is a super-2 number, since 2×4382420832 = 384112246624357778, which contains 22 as substring.
Together with 438242081, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (438242081) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219121041 + 219121042.
It is an arithmetic number, because the mean of its divisors is an integer number (219121042).
Almost surely, 2438242083 is an apocalyptic number.
438242083 is a deficient number, since it is larger than the sum of its proper divisors (1).
438242083 is an equidigital number, since it uses as much as digits as its factorization.
438242083 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 36864, while the sum is 34.
The square root of 438242083 is about 20934.2323241145. The cubic root of 438242083 is about 759.5762197666.
The spelling of 438242083 in words is "four hundred thirty-eight million, two hundred forty-two thousand, eighty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •