Base | Representation |
---|---|
bin | 11000100111000111… |
… | …11111000000111111 |
3 | 1021002211210010122110 |
4 | 30103203333000333 |
5 | 204030023232033 |
6 | 10023042345103 |
7 | 645301341453 |
oct | 142343770077 |
9 | 37084703573 |
10 | 13213102143 |
11 | 56704a722a |
12 | 268905b193 |
13 | 1327595847 |
14 | 8d4b9c663 |
15 | 524ee8363 |
hex | 3138ff03f |
13213102143 has 4 divisors (see below), whose sum is σ = 17617469528. Its totient is φ = 8808734760.
The previous prime is 13213102141. The next prime is 13213102163. The reversal of 13213102143 is 34120131231.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 13213102143 - 21 = 13213102141 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 (13213102141) 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, 2202183688 + ... + 2202183693.
It is an arithmetic number, because the mean of its divisors is an integer number (4404367382).
Almost surely, 213213102143 is an apocalyptic number.
13213102143 is a deficient number, since it is larger than the sum of its proper divisors (4404367385).
13213102143 is an equidigital number, since it uses as much as digits as its factorization.
13213102143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4404367384.
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 13213102143 its reverse (34120131231), we get a palindrome (47333233374).
The spelling of 13213102143 in words is "thirteen billion, two hundred thirteen million, one hundred two thousand, one hundred forty-three".
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