Base | Representation |
---|---|
bin | 10000110011110011… |
… | …010110100111100010 |
3 | 1201120212022122010020 |
4 | 100303303112213202 |
5 | 243431014003221 |
6 | 12142552014310 |
7 | 1206161464263 |
oct | 206363264742 |
9 | 51525278106 |
10 | 18048969186 |
11 | 7722199766 |
12 | 35b8691396 |
13 | 1918417731 |
14 | c3313696a |
15 | 70982cac6 |
hex | 433cd69e2 |
18048969186 has 16 divisors (see below), whose sum is σ = 37073558784. Its totient is φ = 5853719664.
The previous prime is 18048969151. The next prime is 18048969209. The reversal of 18048969186 is 68196984081.
18048969186 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
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, 40650610 + ... + 40651053.
It is an arithmetic number, because the mean of its divisors is an integer number (2317097424).
Almost surely, 218048969186 is an apocalyptic number.
18048969186 is an abundant number, since it is smaller than the sum of its proper divisors (19024589598).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18048969186 is a wasteful number, since it uses less digits than its factorization.
18048969186 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 81301705.
The product of its (nonzero) digits is 5971968, while the sum is 60.
The spelling of 18048969186 in words is "eighteen billion, forty-eight million, nine hundred sixty-nine thousand, one hundred eighty-six".
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