Base | Representation |
---|---|
bin | 110010000100… |
… | …010000111101 |
3 | 220200210122212 |
4 | 302010100331 |
5 | 11324442134 |
6 | 1145150205 |
7 | 216362225 |
oct | 62042075 |
9 | 26623585 |
10 | 13124669 |
11 | 7454838 |
12 | 448b365 |
13 | 2946b9c |
14 | 1a59085 |
15 | 1243bce |
hex | c8443d |
13124669 has 2 divisors, whose sum is σ = 13124670. Its totient is φ = 13124668.
The previous prime is 13124641. The next prime is 13124693. The reversal of 13124669 is 96642131.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 8922169 + 4202500 = 2987^2 + 2050^2 .
It is an emirp because it is prime and its reverse (96642131) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13124669 - 212 = 13120573 is a prime.
It is a super-2 number, since 2×131246692 = 344513872719122, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13127669) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562334 + 6562335.
It is an arithmetic number, because the mean of its divisors is an integer number (6562335).
Almost surely, 213124669 is an apocalyptic number.
It is an amenable number.
13124669 is a deficient number, since it is larger than the sum of its proper divisors (1).
13124669 is an equidigital number, since it uses as much as digits as its factorization.
13124669 is an evil number, because the sum of its binary digits is even.
The product of its digits is 7776, while the sum is 32.
The square root of 13124669 is about 3622.7985039193. The cubic root of 13124669 is about 235.8827160700.
The spelling of 13124669 in words is "thirteen million, one hundred twenty-four thousand, six hundred sixty-nine".
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