Base | Representation |
---|---|
bin | 11001001100111001… |
… | …11110110000111101 |
3 | 1021220221010220100020 |
4 | 30212130332300331 |
5 | 210202142030323 |
6 | 10114323322353 |
7 | 656200245654 |
oct | 144634766075 |
9 | 37827126306 |
10 | 13530033213 |
11 | 5813395234 |
12 | 27572203b9 |
13 | 1378140c18 |
14 | 924cdc19b |
15 | 542c4dae3 |
hex | 32673ec3d |
13530033213 has 4 divisors (see below), whose sum is σ = 18040044288. Its totient is φ = 9020022140.
The previous prime is 13530033211. The next prime is 13530033217. The reversal of 13530033213 is 31233003531.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 13530033213 - 21 = 13530033211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13530033211) 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, 2255005533 + ... + 2255005538.
It is an arithmetic number, because the mean of its divisors is an integer number (4510011072).
Almost surely, 213530033213 is an apocalyptic number.
It is an amenable number.
13530033213 is a deficient number, since it is larger than the sum of its proper divisors (4510011075).
13530033213 is an equidigital number, since it uses as much as digits as its factorization.
13530033213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4510011074.
The product of its (nonzero) digits is 2430, while the sum is 24.
Adding to 13530033213 its reverse (31233003531), we get a palindrome (44763036744).
The spelling of 13530033213 in words is "thirteen billion, five hundred thirty million, thirty-three thousand, two hundred thirteen".
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