Base | Representation |
---|---|
bin | 10111111011000010… |
… | …11111000010111101 |
3 | 1020011002000200112101 |
4 | 23331201133002331 |
5 | 202300344120112 |
6 | 5522233305101 |
7 | 633161441503 |
oct | 137541370275 |
9 | 36132020471 |
10 | 12843348157 |
11 | 54a080a622 |
12 | 25a5265191 |
13 | 1298ab41c3 |
14 | 89ba2c673 |
15 | 50280b757 |
hex | 2fd85f0bd |
12843348157 has 2 divisors, whose sum is σ = 12843348158. Its totient is φ = 12843348156.
The previous prime is 12843348149. The next prime is 12843348181. The reversal of 12843348157 is 75184334821.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12434257081 + 409091076 = 111509^2 + 20226^2 .
It is an emirp because it is prime and its reverse (75184334821) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12843348157 - 23 = 12843348149 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12843348107) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421674078 + 6421674079.
It is an arithmetic number, because the mean of its divisors is an integer number (6421674079).
Almost surely, 212843348157 is an apocalyptic number.
It is an amenable number.
12843348157 is a deficient number, since it is larger than the sum of its proper divisors (1).
12843348157 is an equidigital number, since it uses as much as digits as its factorization.
12843348157 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 645120, while the sum is 46.
The spelling of 12843348157 in words is "twelve billion, eight hundred forty-three million, three hundred forty-eight thousand, one hundred fifty-seven".
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