Base | Representation |
---|---|
bin | 10111010111000101… |
… | …11010000101110101 |
3 | 1012101001110221211120 |
4 | 23223202322011311 |
5 | 201141140344224 |
6 | 5432300454153 |
7 | 622536645651 |
oct | 135342720565 |
9 | 35331427746 |
10 | 12541731189 |
11 | 53565312a9 |
12 | 252024a359 |
13 | 124b46b420 |
14 | 86d957a61 |
15 | 4d60cd779 |
hex | 2eb8ba175 |
12541731189 has 16 divisors (see below), whose sum is σ = 18236601600. Its totient is φ = 7620290496.
The previous prime is 12541731179. The next prime is 12541731217. The reversal of 12541731189 is 98113714521.
It is not a de Polignac number, because 12541731189 - 27 = 12541731061 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12541731189.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12541731149) 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 in 15 ways as a sum of consecutive naturals, for example, 2032254 + ... + 2038415.
It is an arithmetic number, because the mean of its divisors is an integer number (1139787600).
Almost surely, 212541731189 is an apocalyptic number.
It is an amenable number.
12541731189 is a deficient number, since it is larger than the sum of its proper divisors (5694870411).
12541731189 is a wasteful number, since it uses less digits than its factorization.
12541731189 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4070764.
The product of its digits is 60480, while the sum is 42.
The spelling of 12541731189 in words is "twelve billion, five hundred forty-one million, seven hundred thirty-one thousand, one hundred eighty-nine".
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