Base | Representation |
---|---|
bin | 10110111011101111… |
… | …10100000000000101 |
3 | 1011210001211011220022 |
4 | 23131313310000011 |
5 | 200203424031440 |
6 | 5353423544525 |
7 | 614053036355 |
oct | 133567640005 |
9 | 34701734808 |
10 | 12312330245 |
11 | 5248a97a46 |
12 | 247745b145 |
13 | 1212a8ba17 |
14 | 84b2c0b65 |
15 | 4c0db7cb5 |
hex | 2dddf4005 |
12312330245 has 4 divisors (see below), whose sum is σ = 14774796300. Its totient is φ = 9849864192.
The previous prime is 12312330229. The next prime is 12312330253. The reversal of 12312330245 is 54203321321.
It is a happy number.
12312330245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54203321321 = 77069 ⋅703309.
It can be written as a sum of positive squares in 2 ways, for example, as 5291398564 + 7020931681 = 72742^2 + 83791^2 .
It is a cyclic number.
It is not a de Polignac number, because 12312330245 - 24 = 12312330229 is a prime.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231233020 + ... + 1231233029.
It is an arithmetic number, because the mean of its divisors is an integer number (3693699075).
Almost surely, 212312330245 is an apocalyptic number.
It is an amenable number.
12312330245 is a deficient number, since it is larger than the sum of its proper divisors (2462466055).
12312330245 is an equidigital number, since it uses as much as digits as its factorization.
12312330245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2462466054.
The product of its (nonzero) digits is 4320, while the sum is 26.
Adding to 12312330245 its reverse (54203321321), we get a palindrome (66515651566).
The spelling of 12312330245 in words is "twelve billion, three hundred twelve million, three hundred thirty thousand, two hundred forty-five".
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