Base | Representation |
---|---|
bin | 10111111111010111… |
… | …10111100011101011 |
3 | 1020020121021201012221 |
4 | 23333223313203223 |
5 | 202334140440202 |
6 | 5530011014511 |
7 | 634112000305 |
oct | 137753674353 |
9 | 36217251187 |
10 | 12879624427 |
11 | 550a23750a |
12 | 25b543a437 |
13 | 12a3475b57 |
14 | 8a2792975 |
15 | 505ac5037 |
hex | 2ffaf78eb |
12879624427 has 2 divisors, whose sum is σ = 12879624428. Its totient is φ = 12879624426.
The previous prime is 12879624377. The next prime is 12879624451. The reversal of 12879624427 is 72442697821.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12879624427 - 219 = 12879100139 is a prime.
It is not a weakly prime, because it can be changed into another prime (12879624497) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439812213 + 6439812214.
It is an arithmetic number, because the mean of its divisors is an integer number (6439812214).
Almost surely, 212879624427 is an apocalyptic number.
12879624427 is a deficient number, since it is larger than the sum of its proper divisors (1).
12879624427 is an equidigital number, since it uses as much as digits as its factorization.
12879624427 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2709504, while the sum is 52.
The spelling of 12879624427 in words is "twelve billion, eight hundred seventy-nine million, six hundred twenty-four thousand, four hundred twenty-seven".
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