Base | Representation |
---|---|
bin | 10111101101100100… |
… | …00110001010000011 |
3 | 1012212012020022200122 |
4 | 23312302012022003 |
5 | 202032421342042 |
6 | 5503113410455 |
7 | 630316304621 |
oct | 136662061203 |
9 | 35765208618 |
10 | 12730262147 |
11 | 54429a0409 |
12 | 2573409a2b |
13 | 127b53b2c5 |
14 | 88a9d2511 |
15 | 4e791e7d2 |
hex | 2f6c86283 |
12730262147 has 2 divisors, whose sum is σ = 12730262148. Its totient is φ = 12730262146.
The previous prime is 12730262123. The next prime is 12730262177. The reversal of 12730262147 is 74126203721.
It is a weak prime.
It is an emirp because it is prime and its reverse (74126203721) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12730262147 - 28 = 12730261891 is a prime.
It is not a weakly prime, because it can be changed into another prime (12730262177) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6365131073 + 6365131074.
It is an arithmetic number, because the mean of its divisors is an integer number (6365131074).
Almost surely, 212730262147 is an apocalyptic number.
12730262147 is a deficient number, since it is larger than the sum of its proper divisors (1).
12730262147 is an equidigital number, since it uses as much as digits as its factorization.
12730262147 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 28224, while the sum is 35.
Adding to 12730262147 its reverse (74126203721), we get a palindrome (86856465868).
The spelling of 12730262147 in words is "twelve billion, seven hundred thirty million, two hundred sixty-two thousand, one hundred forty-seven".
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