Base | Representation |
---|---|
bin | 110010000100… |
… | …101100101001 |
3 | 220200220002111 |
4 | 302010230221 |
5 | 11330021231 |
6 | 1145202321 |
7 | 216400336 |
oct | 62045451 |
9 | 26626074 |
10 | 13126441 |
11 | 74560a9 |
12 | 44903a1 |
13 | 2947933 |
14 | 1a5998d |
15 | 12444b1 |
hex | c84b29 |
13126441 has 4 divisors (see below), whose sum is σ = 13148884. Its totient is φ = 13104000.
The previous prime is 13126429. The next prime is 13126447. The reversal of 13126441 is 14462131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14462131 = 137 ⋅105563.
It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 9126441 = 2000^2 + 3021^2 .
It is a cyclic number.
It is not a de Polignac number, because 13126441 - 211 = 13124393 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13126447) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10320 + ... + 11521.
It is an arithmetic number, because the mean of its divisors is an integer number (3287221).
Almost surely, 213126441 is an apocalyptic number.
It is an amenable number.
13126441 is a deficient number, since it is larger than the sum of its proper divisors (22443).
13126441 is an equidigital number, since it uses as much as digits as its factorization.
13126441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22442.
The product of its digits is 576, while the sum is 22.
The square root of 13126441 is about 3623.0430579832. The cubic root of 13126441 is about 235.8933313311.
Adding to 13126441 its reverse (14462131), we get a palindrome (27588572).
The spelling of 13126441 in words is "thirteen million, one hundred twenty-six thousand, four hundred forty-one".
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