Base | Representation |
---|---|
bin | 111011111101000011… |
… | …0100110100100100001 |
3 | 110022022211000001112202 |
4 | 1313322012212210201 |
5 | 4102140010231213 |
6 | 135051425102545 |
7 | 12205355451323 |
oct | 1677206464441 |
9 | 408284001482 |
10 | 128750086433 |
11 | 4a66a081611 |
12 | 20b52187a55 |
13 | c1aac553c7 |
14 | 63354a5613 |
15 | 3538268b58 |
hex | 1dfa1a6921 |
128750086433 has 2 divisors, whose sum is σ = 128750086434. Its totient is φ = 128750086432.
The previous prime is 128750086351. The next prime is 128750086459. The reversal of 128750086433 is 334680057821.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 93754153249 + 34995933184 = 306193^2 + 187072^2 .
It is a cyclic number.
It is not a de Polignac number, because 128750086433 - 214 = 128750070049 is a prime.
It is not a weakly prime, because it can be changed into another prime (128750083433) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64375043216 + 64375043217.
It is an arithmetic number, because the mean of its divisors is an integer number (64375043217).
Almost surely, 2128750086433 is an apocalyptic number.
It is an amenable number.
128750086433 is a deficient number, since it is larger than the sum of its proper divisors (1).
128750086433 is an equidigital number, since it uses as much as digits as its factorization.
128750086433 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 967680, while the sum is 47.
The spelling of 128750086433 in words is "one hundred twenty-eight billion, seven hundred fifty million, eighty-six thousand, four hundred thirty-three".
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