Base | Representation |
---|---|
bin | 10000110100110100… |
… | …011100100011101010 |
3 | 1201122001102120002200 |
4 | 100310310130203222 |
5 | 243444401022444 |
6 | 12144401441030 |
7 | 1206456513531 |
oct | 206464344352 |
9 | 51561376080 |
10 | 18066032874 |
11 | 773089398a |
12 | 3602340176 |
13 | 191bb104a6 |
14 | c354d9318 |
15 | 70b09d969 |
hex | 434d1c8ea |
18066032874 has 24 divisors (see below), whose sum is σ = 40405752192. Its totient is φ = 5827752360.
The previous prime is 18066032867. The next prime is 18066032891. The reversal of 18066032874 is 47823066081.
18066032874 is a `hidden beast` number, since 18 + 0 + 6 + 603 + 28 + 7 + 4 = 666.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16187644 + ... + 16188759.
It is an arithmetic number, because the mean of its divisors is an integer number (1683573008).
Almost surely, 218066032874 is an apocalyptic number.
18066032874 is an abundant number, since it is smaller than the sum of its proper divisors (22339719318).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18066032874 is a wasteful number, since it uses less digits than its factorization.
18066032874 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32376442 (or 32376439 counting only the distinct ones).
The product of its (nonzero) digits is 387072, while the sum is 45.
The spelling of 18066032874 in words is "eighteen billion, sixty-six million, thirty-two thousand, eight hundred seventy-four".
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