Base | Representation |
---|---|
bin | 10111111111110000… |
… | …10101111101110101 |
3 | 1020020211102212012111 |
4 | 23333320111331311 |
5 | 202341010112314 |
6 | 5530205051021 |
7 | 634151540536 |
oct | 137770257565 |
9 | 36224385174 |
10 | 12882894709 |
11 | 5511070523 |
12 | 25b6556a71 |
13 | 12a404c529 |
14 | 8a2da468d |
15 | 50601dec4 |
hex | 2ffe15f75 |
12882894709 has 2 divisors, whose sum is σ = 12882894710. Its totient is φ = 12882894708.
The previous prime is 12882894707. The next prime is 12882894727. The reversal of 12882894709 is 90749828821.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 8234655025 + 4648239684 = 90745^2 + 68178^2 .
It is a cyclic number.
It is not a de Polignac number, because 12882894709 - 21 = 12882894707 is a prime.
Together with 12882894707, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12882894701) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6441447354 + 6441447355.
It is an arithmetic number, because the mean of its divisors is an integer number (6441447355).
Almost surely, 212882894709 is an apocalyptic number.
It is an amenable number.
12882894709 is a deficient number, since it is larger than the sum of its proper divisors (1).
12882894709 is an equidigital number, since it uses as much as digits as its factorization.
12882894709 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4644864, while the sum is 58.
The spelling of 12882894709 in words is "twelve billion, eight hundred eighty-two million, eight hundred ninety-four thousand, seven hundred nine".
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