Base | Representation |
---|---|
bin | 110100001111… |
… | …111100010101 |
3 | 221202212110111 |
4 | 310033330111 |
5 | 12001244124 |
6 | 1205323021 |
7 | 224264221 |
oct | 64177425 |
9 | 27685414 |
10 | 13696789 |
11 | 7805667 |
12 | 4706471 |
13 | 2ab7412 |
14 | 1b67781 |
15 | 1308494 |
hex | d0ff15 |
13696789 has 2 divisors, whose sum is σ = 13696790. Its totient is φ = 13696788.
The previous prime is 13696769. The next prime is 13696817. The reversal of 13696789 is 98769631.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10510564 + 3186225 = 3242^2 + 1785^2 .
It is an emirp because it is prime and its reverse (98769631) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13696789 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13696759) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6848394 + 6848395.
It is an arithmetic number, because the mean of its divisors is an integer number (6848395).
Almost surely, 213696789 is an apocalyptic number.
It is an amenable number.
13696789 is a deficient number, since it is larger than the sum of its proper divisors (1).
13696789 is an equidigital number, since it uses as much as digits as its factorization.
13696789 is an evil number, because the sum of its binary digits is even.
The product of its digits is 489888, while the sum is 49.
The square root of 13696789 is about 3700.9173187198. The cubic root of 13696789 is about 239.2615554771.
The spelling of 13696789 in words is "thirteen million, six hundred ninety-six thousand, seven hundred eighty-nine".
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