Base | Representation |
---|---|
bin | 10000110100001001… |
… | …111101000011100000 |
3 | 1201121021110122011002 |
4 | 100310021331003200 |
5 | 243434023100132 |
6 | 12143323011132 |
7 | 1206263031215 |
oct | 206411750340 |
9 | 51537418132 |
10 | 18054893792 |
11 | 7725575a31 |
12 | 35ba669aa8 |
13 | 1919710310 |
14 | c33c39b0c |
15 | 70a0ed262 |
hex | 43427d0e0 |
18054893792 has 96 divisors (see below), whose sum is σ = 42665162400. Its totient is φ = 7430012928.
The previous prime is 18054893777. The next prime is 18054893807. The reversal of 18054893792 is 29739845081.
It is an interprime number because it is at equal distance from previous prime (18054893777) and next prime (18054893807).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67184 + ... + 201552.
It is an arithmetic number, because the mean of its divisors is an integer number (444428775).
Almost surely, 218054893792 is an apocalyptic number.
It is a pronic number, being equal to 134368×134369.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18054893792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21332581200).
18054893792 is an abundant number, since it is smaller than the sum of its proper divisors (24610268608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18054893792 is a wasteful number, since it uses less digits than its factorization.
18054893792 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 134428 (or 134420 counting only the distinct ones).
The product of its (nonzero) digits is 4354560, while the sum is 56.
The spelling of 18054893792 in words is "eighteen billion, fifty-four million, eight hundred ninety-three thousand, seven hundred ninety-two".
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