Base | Representation |
---|---|
bin | 10110101110011111… |
… | …11000111010100101 |
3 | 1011111022201020200002 |
4 | 23113033320322211 |
5 | 144442001420232 |
6 | 5334414031045 |
7 | 611233333334 |
oct | 132717707245 |
9 | 34438636602 |
10 | 12201201317 |
11 | 51a1295158 |
12 | 24461a8485 |
13 | 11c5a4c866 |
14 | 83a633d1b |
15 | 4b6265b62 |
hex | 2d73f8ea5 |
12201201317 has 4 divisors (see below), whose sum is σ = 12201473760. Its totient is φ = 12200928876.
The previous prime is 12201201263. The next prime is 12201201323. The reversal of 12201201317 is 71310210221.
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: 71310210221 = 19 ⋅3753168959.
It is a cyclic number.
It is not a de Polignac number, because 12201201317 - 210 = 12201200293 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 (12201201017) 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, 51467 + ... + 164472.
It is an arithmetic number, because the mean of its divisors is an integer number (3050368440).
Almost surely, 212201201317 is an apocalyptic number.
It is an amenable number.
12201201317 is a deficient number, since it is larger than the sum of its proper divisors (272443).
12201201317 is an equidigital number, since it uses as much as digits as its factorization.
12201201317 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 272442.
The product of its (nonzero) digits is 168, while the sum is 20.
Adding to 12201201317 its reverse (71310210221), we get a palindrome (83511411538).
The spelling of 12201201317 in words is "twelve billion, two hundred one million, two hundred one thousand, three hundred seventeen".
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