Base | Representation |
---|---|
bin | 10001000111000111… |
… | …111010110011010110 |
3 | 1202102110021120120100 |
4 | 101013013322303112 |
5 | 300112010034012 |
6 | 12235051514530 |
7 | 1220206002021 |
oct | 210707726326 |
9 | 52373246510 |
10 | 18373127382 |
11 | 78791735a5 |
12 | 3689158a46 |
13 | 196a62350c |
14 | c641d81b8 |
15 | 72800e8dc |
hex | 4471facd6 |
18373127382 has 48 divisors (see below), whose sum is σ = 40574600352. Its totient is φ = 6007384320.
The previous prime is 18373127359. The next prime is 18373127389. The reversal of 18373127382 is 28372137381.
It is a happy number.
18373127382 is a `hidden beast` number, since 1 + 8 + 373 + 1 + 273 + 8 + 2 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18373127389) 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 23 ways as a sum of consecutive naturals, for example, 215278 + ... + 288254.
It is an arithmetic number, because the mean of its divisors is an integer number (845304174).
Almost surely, 218373127382 is an apocalyptic number.
18373127382 is an abundant number, since it is smaller than the sum of its proper divisors (22201472970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18373127382 is a wasteful number, since it uses less digits than its factorization.
18373127382 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 73253 (or 73250 counting only the distinct ones).
The product of its digits is 338688, while the sum is 45.
Subtracting 18373127382 from its reverse (28372137381), we obtain a palindrome (9999009999).
The spelling of 18373127382 in words is "eighteen billion, three hundred seventy-three million, one hundred twenty-seven thousand, three hundred eighty-two".
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