Base | Representation |
---|---|
bin | 10111001100000… |
… | …011010000011111 |
3 | 1000010001000202011 |
4 | 113030003100133 |
5 | 1244043110124 |
6 | 102334212051 |
7 | 12432512641 |
oct | 2714032037 |
9 | 1003030664 |
10 | 389035039 |
11 | 18a666868 |
12 | aa354027 |
13 | 627a2763 |
14 | 3994c891 |
15 | 24249994 |
hex | 1730341f |
389035039 has 2 divisors, whose sum is σ = 389035040. Its totient is φ = 389035038.
The previous prime is 389035037. The next prime is 389035067. The reversal of 389035039 is 930530983.
It is a weak prime.
It is an emirp because it is prime and its reverse (930530983) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 389035039 - 21 = 389035037 is a prime.
Together with 389035037, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 389034992 and 389035010.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (389035033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194517519 + 194517520.
It is an arithmetic number, because the mean of its divisors is an integer number (194517520).
Almost surely, 2389035039 is an apocalyptic number.
389035039 is a deficient number, since it is larger than the sum of its proper divisors (1).
389035039 is an equidigital number, since it uses as much as digits as its factorization.
389035039 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 87480, while the sum is 40.
The square root of 389035039 is about 19723.9711772249. The cubic root of 389035039 is about 730.0112833685.
The spelling of 389035039 in words is "three hundred eighty-nine million, thirty-five thousand, thirty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •