Base | Representation |
---|---|
bin | 10111101010111110… |
… | …11001100110000101 |
3 | 1012210200102221121101 |
4 | 23311133121212011 |
5 | 202011344140223 |
6 | 5501021020101 |
7 | 626634115522 |
oct | 136537314605 |
9 | 35720387541 |
10 | 12708583813 |
11 | 5431734132 |
12 | 25680b4631 |
13 | 1276bbaca3 |
14 | 887b8c149 |
15 | 4e5a8b4ad |
hex | 2f57d9985 |
12708583813 has 2 divisors, whose sum is σ = 12708583814. Its totient is φ = 12708583812.
The previous prime is 12708583807. The next prime is 12708583859. The reversal of 12708583813 is 31838580721.
It is an a-pointer prime, because the next prime (12708583859) can be obtained adding 12708583813 to its sum of digits (46).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12230811649 + 477772164 = 110593^2 + 21858^2 .
It is a cyclic number.
It is not a de Polignac number, because 12708583813 - 25 = 12708583781 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12708583883) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354291906 + 6354291907.
It is an arithmetic number, because the mean of its divisors is an integer number (6354291907).
Almost surely, 212708583813 is an apocalyptic number.
It is an amenable number.
12708583813 is a deficient number, since it is larger than the sum of its proper divisors (1).
12708583813 is an equidigital number, since it uses as much as digits as its factorization.
12708583813 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 322560, while the sum is 46.
The spelling of 12708583813 in words is "twelve billion, seven hundred eight million, five hundred eighty-three thousand, eight hundred thirteen".
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