Base | Representation |
---|---|
bin | 10001000111101011… |
… | …100100001101000100 |
3 | 1202110002212022222110 |
4 | 101013223210031010 |
5 | 300121403101004 |
6 | 12240024101020 |
7 | 1220351301561 |
oct | 210753441504 |
9 | 52402768873 |
10 | 18382472004 |
11 | 7883476326 |
12 | 3690304770 |
13 | 196c545990 |
14 | c6554b868 |
15 | 728c58589 |
hex | 447ae4344 |
18382472004 has 24 divisors (see below), whose sum is σ = 46191853120. Its totient is φ = 5656145184.
The previous prime is 18382471949. The next prime is 18382472021. The reversal of 18382472004 is 40027428381.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58918024 + ... + 58918335.
Almost surely, 218382472004 is an apocalyptic number.
It is an amenable number.
18382472004 is an abundant number, since it is smaller than the sum of its proper divisors (27809381116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18382472004 is a wasteful number, since it uses less digits than its factorization.
18382472004 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117836379 (or 117836377 counting only the distinct ones).
The product of its (nonzero) digits is 86016, while the sum is 39.
The spelling of 18382472004 in words is "eighteen billion, three hundred eighty-two million, four hundred seventy-two thousand, four".
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