Base | Representation |
---|---|
bin | 11010101010010100110011 |
3 | 111011002020211 |
4 | 122222110303 |
5 | 3242122412 |
6 | 405444551 |
7 | 113256256 |
oct | 32522463 |
9 | 14132224 |
10 | 6989107 |
11 | 3a44024 |
12 | 2410757 |
13 | 15a9288 |
14 | cdd09d |
15 | 930ca7 |
hex | 6aa533 |
6989107 has 2 divisors, whose sum is σ = 6989108. Its totient is φ = 6989106.
The previous prime is 6989071. The next prime is 6989111. The reversal of 6989107 is 7019896.
Together with previous prime (6989071) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 6989107 - 219 = 6464819 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 6989107.
It is not a weakly prime, because it can be changed into another prime (6989137) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494553 + 3494554.
It is an arithmetic number, because the mean of its divisors is an integer number (3494554).
Almost surely, 26989107 is an apocalyptic number.
6989107 is a deficient number, since it is larger than the sum of its proper divisors (1).
6989107 is an equidigital number, since it uses as much as digits as its factorization.
6989107 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27216, while the sum is 40.
The square root of 6989107 is about 2643.6919260761. The cubic root of 6989107 is about 191.1938402893.
The spelling of 6989107 in words is "six million, nine hundred eighty-nine thousand, one hundred seven".
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