Base | Representation |
---|---|
bin | 110001111111… |
… | …100001100100 |
3 | 220122211000201 |
4 | 301333201210 |
5 | 11323332002 |
6 | 1144520244 |
7 | 216251506 |
oct | 61774144 |
9 | 26584021 |
10 | 13105252 |
11 | 7441196 |
12 | 4480084 |
13 | 293b0b4 |
14 | 1a51d76 |
15 | 123d087 |
hex | c7f864 |
13105252 has 24 divisors (see below), whose sum is σ = 23896376. Its totient is φ = 6283008.
The previous prime is 13105247. The next prime is 13105259. The reversal of 13105252 is 25250131.
It can be written as a sum of positive squares in 4 ways, for example, as 1653796 + 11451456 = 1286^2 + 3384^2 .
It is not an unprimeable number, because it can be changed into a prime (13105259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10198 + ... + 11410.
Almost surely, 213105252 is an apocalyptic number.
It is an amenable number.
13105252 is a deficient number, since it is larger than the sum of its proper divisors (10791124).
13105252 is a wasteful number, since it uses less digits than its factorization.
13105252 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1327 (or 1325 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 19.
The square root of 13105252 is about 3620.1176776453. The cubic root of 13105252 is about 235.7663348438.
Adding to 13105252 its reverse (25250131), we get a palindrome (38355383).
The spelling of 13105252 in words is "thirteen million, one hundred five thousand, two hundred fifty-two".
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