Base | Representation |
---|---|
bin | 110000011110… |
… | …100110000101 |
3 | 212220122102011 |
4 | 300132212011 |
5 | 11223130404 |
6 | 1132214221 |
7 | 213006142 |
oct | 60364605 |
9 | 25818364 |
10 | 12708229 |
11 | 719a976 |
12 | 430a371 |
13 | 282c481 |
14 | 198b3c9 |
15 | 11b0604 |
hex | c1e985 |
12708229 has 2 divisors, whose sum is σ = 12708230. Its totient is φ = 12708228.
The previous prime is 12708217. The next prime is 12708239. The reversal of 12708229 is 92280721.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 12320100 + 388129 = 3510^2 + 623^2 .
It is a cyclic number.
It is not a de Polignac number, because 12708229 - 217 = 12577157 is a prime.
It is a super-2 number, since 2×127082292 = 322998168632882, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 12708229.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12708209) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354114 + 6354115.
It is an arithmetic number, because the mean of its divisors is an integer number (6354115).
Almost surely, 212708229 is an apocalyptic number.
It is an amenable number.
12708229 is a deficient number, since it is larger than the sum of its proper divisors (1).
12708229 is an equidigital number, since it uses as much as digits as its factorization.
12708229 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 4032, while the sum is 31.
The square root of 12708229 is about 3564.8603058184. The cubic root of 12708229 is about 233.3610359399.
The spelling of 12708229 in words is "twelve million, seven hundred eight thousand, two hundred twenty-nine".
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