Base | Representation |
---|---|
bin | 10111001001110010… |
… | …01100000001110001 |
3 | 1012002021111002120211 |
4 | 23210321030001301 |
5 | 200424103200223 |
6 | 5413232504121 |
7 | 620013241615 |
oct | 134471140161 |
9 | 35067432524 |
10 | 12430131313 |
11 | 52a95376a6 |
12 | 24aa9ab041 |
13 | 12312c5ab2 |
14 | 85cbc7345 |
15 | 4cb3d6d0d |
hex | 2e4e4c071 |
12430131313 has 4 divisors (see below), whose sum is σ = 12694602240. Its totient is φ = 12165660388.
The previous prime is 12430131169. The next prime is 12430131317. The reversal of 12430131313 is 31313103421.
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: 31313103421 = 47 ⋅666236243.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12430131313 is a prime.
It is not an unprimeable number, because it can be changed into a prime (12430131317) 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, 132235393 + ... + 132235486.
It is an arithmetic number, because the mean of its divisors is an integer number (3173650560).
Almost surely, 212430131313 is an apocalyptic number.
It is an amenable number.
12430131313 is a deficient number, since it is larger than the sum of its proper divisors (264470927).
12430131313 is an equidigital number, since it uses as much as digits as its factorization.
12430131313 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 264470926.
The product of its (nonzero) digits is 648, while the sum is 22.
Adding to 12430131313 its reverse (31313103421), we get a palindrome (43743234734).
The spelling of 12430131313 in words is "twelve billion, four hundred thirty million, one hundred thirty-one thousand, three hundred thirteen".
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