Base | Representation |
---|---|
bin | 11010101100111111111001 |
3 | 111011122021101 |
4 | 122230333321 |
5 | 3243000212 |
6 | 410011401 |
7 | 113333221 |
oct | 32547771 |
9 | 14148241 |
10 | 7000057 |
11 | 3a51279 |
12 | 2416b61 |
13 | 15b125c |
14 | d03081 |
15 | 934157 |
hex | 6acff9 |
7000057 has 2 divisors, whose sum is σ = 7000058. Its totient is φ = 7000056.
The previous prime is 7000033. The next prime is 7000061. The reversal of 7000057 is 7500007.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6446521 + 553536 = 2539^2 + 744^2 .
It is a cyclic number.
It is not a de Polignac number, because 7000057 - 27 = 6999929 is a prime.
7000057 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 6999998 and 7000043.
It is not a weakly prime, because it can be changed into another prime (7000087) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3500028 + 3500029.
It is an arithmetic number, because the mean of its divisors is an integer number (3500029).
Almost surely, 27000057 is an apocalyptic number.
It is an amenable number.
7000057 is a deficient number, since it is larger than the sum of its proper divisors (1).
7000057 is an equidigital number, since it uses as much as digits as its factorization.
7000057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 245, while the sum is 19.
The square root of 7000057 is about 2645.7620830301. The cubic root of 7000057 is about 191.2936375000.
The spelling of 7000057 in words is "seven million, fifty-seven", and thus it is an aban number and an uban number.
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