Base | Representation |
---|---|
bin | 110010000101… |
… | …101100110011 |
3 | 220201002201120 |
4 | 302011230303 |
5 | 11330134142 |
6 | 1145233323 |
7 | 216415323 |
oct | 62055463 |
9 | 26632646 |
10 | 13130547 |
11 | 74591a1 |
12 | 4492843 |
13 | 2949771 |
14 | 1a5b283 |
15 | 12457ec |
hex | c85b33 |
13130547 has 4 divisors (see below), whose sum is σ = 17507400. Its totient is φ = 8753696.
The previous prime is 13130521. The next prime is 13130549. The reversal of 13130547 is 74503131.
13130547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13130547 - 26 = 13130483 is a prime.
It is a super-2 number, since 2×131305472 = 344822529038418, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13130549) 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, 2188422 + ... + 2188427.
It is an arithmetic number, because the mean of its divisors is an integer number (4376850).
Almost surely, 213130547 is an apocalyptic number.
13130547 is a deficient number, since it is larger than the sum of its proper divisors (4376853).
13130547 is an equidigital number, since it uses as much as digits as its factorization.
13130547 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4376852.
The product of its (nonzero) digits is 1260, while the sum is 24.
The square root of 13130547 is about 3623.6096644092. The cubic root of 13130547 is about 235.9179248733.
Adding to 13130547 its reverse (74503131), we get a palindrome (87633678).
The spelling of 13130547 in words is "thirteen million, one hundred thirty thousand, five hundred forty-seven".
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