Base | Representation |
---|---|
bin | 10111001011010101… |
… | …01010111111101101 |
3 | 1012010011220010200120 |
4 | 23211222222333231 |
5 | 200440413300323 |
6 | 5414414515153 |
7 | 620231426562 |
oct | 134552527755 |
9 | 35104803616 |
10 | 12443103213 |
11 | 5305897682 |
12 | 24b3205ab9 |
13 | 1233bb8288 |
14 | 860802869 |
15 | 4cc5ea5e3 |
hex | 2e5aaafed |
12443103213 has 8 divisors (see below), whose sum is σ = 16591356576. Its totient is φ = 8295126000.
The previous prime is 12443103203. The next prime is 12443103217. The reversal of 12443103213 is 31230134421.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12443103213 - 28 = 12443102957 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12443103217) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85563 + ... + 179463.
It is an arithmetic number, because the mean of its divisors is an integer number (2073919572).
Almost surely, 212443103213 is an apocalyptic number.
It is an amenable number.
12443103213 is a deficient number, since it is larger than the sum of its proper divisors (4148253363).
12443103213 is an equidigital number, since it uses as much as digits as its factorization.
12443103213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 138075.
The product of its (nonzero) digits is 1728, while the sum is 24.
Adding to 12443103213 its reverse (31230134421), we get a palindrome (43673237634).
The spelling of 12443103213 in words is "twelve billion, four hundred forty-three million, one hundred three thousand, two hundred thirteen".
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