Base | Representation |
---|---|
bin | 110010000001… |
… | …111101101110 |
3 | 220200022201212 |
4 | 302001331232 |
5 | 11324141441 |
6 | 1145034422 |
7 | 216322604 |
oct | 62017556 |
9 | 26608655 |
10 | 13115246 |
11 | 7448751 |
12 | 4485a12 |
13 | 2942801 |
14 | 1a55874 |
15 | 1240eeb |
hex | c81f6e |
13115246 has 4 divisors (see below), whose sum is σ = 19672872. Its totient is φ = 6557622.
The previous prime is 13115243. The next prime is 13115251. The reversal of 13115246 is 64251131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64251131 = 7 ⋅9178733.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13115243) 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 as a sum of consecutive naturals, namely, 3278810 + ... + 3278813.
It is an arithmetic number, because the mean of its divisors is an integer number (4918218).
Almost surely, 213115246 is an apocalyptic number.
13115246 is a deficient number, since it is larger than the sum of its proper divisors (6557626).
13115246 is an equidigital number, since it uses as much as digits as its factorization.
13115246 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6557625.
The product of its digits is 720, while the sum is 23.
The square root of 13115246 is about 3621.4977564538. The cubic root of 13115246 is about 235.8262510273.
Adding to 13115246 its reverse (64251131), we get a palindrome (77366377).
The spelling of 13115246 in words is "thirteen million, one hundred fifteen thousand, two hundred forty-six".
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