Base | Representation |
---|---|
bin | 11000011100000… |
… | …00110101000111 |
3 | 112021202002010212 |
4 | 30032000311013 |
5 | 404440000012 |
6 | 32201510035 |
7 | 5036320442 |
oct | 1416006507 |
9 | 467662125 |
10 | 205000007 |
11 | a57985a3 |
12 | 587a231b |
13 | 336180a4 |
14 | 1d324659 |
15 | 12ee5b22 |
hex | c380d47 |
205000007 has 2 divisors, whose sum is σ = 205000008. Its totient is φ = 205000006.
The previous prime is 205000001. The next prime is 205000013. The reversal of 205000007 is 700000502.
It is a balanced prime because it is at equal distance from previous prime (205000001) and next prime (205000013).
It is a cyclic number.
It is not a de Polignac number, because 205000007 - 224 = 188222791 is a prime.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 204999955 and 205000000.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (205000001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102500003 + 102500004.
It is an arithmetic number, because the mean of its divisors is an integer number (102500004).
Almost surely, 2205000007 is an apocalyptic number.
205000007 is a deficient number, since it is larger than the sum of its proper divisors (1).
205000007 is an equidigital number, since it uses as much as digits as its factorization.
205000007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 70, while the sum is 14.
The square root of 205000007 is about 14317.8213077270. The cubic root of 205000007 is about 589.6368607084.
Adding to 205000007 its reverse (700000502), we get a palindrome (905000509).
The spelling of 205000007 in words is "two hundred five million, seven", and thus it is an aban number.
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