Base | Representation |
---|---|
bin | 10000110001001010… |
… | …001100111110101100 |
3 | 1201110202212211120211 |
4 | 100301022030332230 |
5 | 243333141033442 |
6 | 12134325352204 |
7 | 1205112543664 |
oct | 206112147654 |
9 | 51422784524 |
10 | 18004627372 |
11 | 76aa163036 |
12 | 35a5868664 |
13 | 190c190884 |
14 | c2b2b31a4 |
15 | 7059be617 |
hex | 43128cfac |
18004627372 has 12 divisors (see below), whose sum is σ = 31510221120. Its totient is φ = 9001707056.
The previous prime is 18004627369. The next prime is 18004627379. The reversal of 18004627372 is 27372640081.
It is not an unprimeable number, because it can be changed into a prime (18004627379) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81247 + ... + 206422.
It is an arithmetic number, because the mean of its divisors is an integer number (2625851760).
Almost surely, 218004627372 is an apocalyptic number.
It is an amenable number.
18004627372 is a deficient number, since it is larger than the sum of its proper divisors (13505593748).
18004627372 is a wasteful number, since it uses less digits than its factorization.
18004627372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 303320 (or 303318 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 40.
The spelling of 18004627372 in words is "eighteen billion, four million, six hundred twenty-seven thousand, three hundred seventy-two".
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