Base | Representation |
---|---|
bin | 11011110011100011100001 |
3 | 111201022201002 |
4 | 123303203201 |
5 | 3331222212 |
6 | 420121345 |
7 | 115645616 |
oct | 33634341 |
9 | 14638632 |
10 | 7289057 |
11 | 4129416 |
12 | 2536255 |
13 | 1682969 |
14 | d7a50d |
15 | 98eac2 |
hex | 6f38e1 |
7289057 has 2 divisors, whose sum is σ = 7289058. Its totient is φ = 7289056.
The previous prime is 7289047. The next prime is 7289071. The reversal of 7289057 is 7509827.
7289057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6507601 + 781456 = 2551^2 + 884^2 .
It is a cyclic number.
It is not a de Polignac number, because 7289057 - 24 = 7289041 is a prime.
It is equal to p494975 and since 7289057 and 494975 have the same sum of digits, it is a Honaker prime.
It is a self number, because there is not a number n which added to its sum of digits gives 7289057.
It is not a weakly prime, because it can be changed into another prime (7289017) 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, 3644528 + 3644529.
It is an arithmetic number, because the mean of its divisors is an integer number (3644529).
Almost surely, 27289057 is an apocalyptic number.
It is an amenable number.
7289057 is a deficient number, since it is larger than the sum of its proper divisors (1).
7289057 is an equidigital number, since it uses as much as digits as its factorization.
7289057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 35280, while the sum is 38.
The square root of 7289057 is about 2699.8253647227. The cubic root of 7289057 is about 193.8907611172.
The spelling of 7289057 in words is "seven million, two hundred eighty-nine thousand, fifty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.085 sec. • engine limits •