Base | Representation |
---|---|
bin | 10001100100110001… |
… | …100010000111010000 |
3 | 1210201010022120012020 |
4 | 101210301202013100 |
5 | 302121331404233 |
6 | 12400301531440 |
7 | 1235426150205 |
oct | 214461420720 |
9 | 53633276166 |
10 | 18870575568 |
11 | 8003a477a9 |
12 | 37a7873b80 |
13 | 1a196c3c60 |
14 | cb02c7cac |
15 | 756a219b3 |
hex | 464c621d0 |
18870575568 has 40 divisors (see below), whose sum is σ = 52498910688. Its totient is φ = 5806330752.
The previous prime is 18870575567. The next prime is 18870575573. The reversal of 18870575568 is 86557507881.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18870575567) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15120030 + ... + 15121277.
Almost surely, 218870575568 is an apocalyptic number.
It is an amenable number.
18870575568 is an abundant number, since it is smaller than the sum of its proper divisors (33628335120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18870575568 is a wasteful number, since it uses less digits than its factorization.
18870575568 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30241331 (or 30241325 counting only the distinct ones).
The product of its (nonzero) digits is 18816000, while the sum is 60.
The spelling of 18870575568 in words is "eighteen billion, eight hundred seventy million, five hundred seventy-five thousand, five hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •