Base | Representation |
---|---|
bin | 11000100101111100… |
… | …10011000111100101 |
3 | 1021002011012020000202 |
4 | 30102332103013211 |
5 | 204020011114023 |
6 | 10022050520245 |
7 | 645121354361 |
oct | 142276230745 |
9 | 37064166022 |
10 | 13203223013 |
11 | 5665969962 |
12 | 2685896085 |
13 | 1325516cc6 |
14 | 8d374a2a1 |
15 | 5241e6128 |
hex | 312f931e5 |
13203223013 has 4 divisors (see below), whose sum is σ = 13290661728. Its totient is φ = 13115784300.
The previous prime is 13203223003. The next prime is 13203223027. The reversal of 13203223013 is 31032230231.
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, and also an emirpimes, since its reverse is a distinct semiprime: 31032230231 = 1567 ⋅19803593.
It is a cyclic number.
It is not a de Polignac number, because 13203223013 - 28 = 13203222757 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 (13203223003) 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, 43719131 + ... + 43719432.
It is an arithmetic number, because the mean of its divisors is an integer number (3322665432).
Almost surely, 213203223013 is an apocalyptic number.
It is an amenable number.
13203223013 is a deficient number, since it is larger than the sum of its proper divisors (87438715).
13203223013 is an equidigital number, since it uses as much as digits as its factorization.
13203223013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87438714.
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 13203223013 its reverse (31032230231), we get a palindrome (44235453244).
The spelling of 13203223013 in words is "thirteen billion, two hundred three million, two hundred twenty-three thousand, thirteen".
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