Base | Representation |
---|---|
bin | 11000000011111110… |
… | …10101000010000111 |
3 | 1020100022000122010221 |
4 | 30001333111002013 |
5 | 202424034432302 |
6 | 5533511325211 |
7 | 635061366601 |
oct | 140177250207 |
9 | 36308018127 |
10 | 12918280327 |
11 | 552a03a237 |
12 | 2606380807 |
13 | 12ab48b974 |
14 | 8a7976171 |
15 | 5091ad937 |
hex | 301fd5087 |
12918280327 has 2 divisors, whose sum is σ = 12918280328. Its totient is φ = 12918280326.
The previous prime is 12918280223. The next prime is 12918280409. The reversal of 12918280327 is 72308281921.
It is a strong prime.
It is an emirp because it is prime and its reverse (72308281921) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12918280327 - 223 = 12909891719 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12918286327) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6459140163 + 6459140164.
It is an arithmetic number, because the mean of its divisors is an integer number (6459140164).
Almost surely, 212918280327 is an apocalyptic number.
12918280327 is a deficient number, since it is larger than the sum of its proper divisors (1).
12918280327 is an equidigital number, since it uses as much as digits as its factorization.
12918280327 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96768, while the sum is 43.
The spelling of 12918280327 in words is "twelve billion, nine hundred eighteen million, two hundred eighty thousand, three hundred twenty-seven".
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