Base | Representation |
---|---|
bin | 110010011101… |
… | …000111011101 |
3 | 220212222021221 |
4 | 302131013131 |
5 | 11341221321 |
6 | 1151253341 |
7 | 220265053 |
oct | 62350735 |
9 | 26788257 |
10 | 13226461 |
11 | 7514266 |
12 | 451a251 |
13 | 2981311 |
14 | 1a841d3 |
15 | 1263e41 |
hex | c9d1dd |
13226461 has 4 divisors (see below), whose sum is σ = 13275900. Its totient is φ = 13177024.
The previous prime is 13226419. The next prime is 13226467. The reversal of 13226461 is 16462231.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16462231 = 2503 ⋅6577.
It can be written as a sum of positive squares in 2 ways, for example, as 4435236 + 8791225 = 2106^2 + 2965^2 .
It is a cyclic number.
It is not a de Polignac number, because 13226461 - 213 = 13218269 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13226467) 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, 24316 + ... + 24853.
It is an arithmetic number, because the mean of its divisors is an integer number (3318975).
Almost surely, 213226461 is an apocalyptic number.
It is an amenable number.
13226461 is a deficient number, since it is larger than the sum of its proper divisors (49439).
13226461 is an equidigital number, since it uses as much as digits as its factorization.
13226461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49438.
The product of its digits is 1728, while the sum is 25.
The square root of 13226461 is about 3636.8201770228. The cubic root of 13226461 is about 236.4909641699.
Adding to 13226461 its reverse (16462231), we get a palindrome (29688692).
The spelling of 13226461 in words is "thirteen million, two hundred twenty-six thousand, four hundred sixty-one".
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