Base | Representation |
---|---|
bin | 10001000111101010… |
… | …000001010110001101 |
3 | 1202110002002202112110 |
4 | 101013222001112031 |
5 | 300121302121320 |
6 | 12240011254233 |
7 | 1220344664214 |
oct | 210752012615 |
9 | 52402082473 |
10 | 18382067085 |
11 | 788321a088 |
12 | 369014a379 |
13 | 196c433595 |
14 | c6548407b |
15 | 728bc85e0 |
hex | 447a8158d |
18382067085 has 16 divisors (see below), whose sum is σ = 30959271360. Its totient is φ = 9287781120.
The previous prime is 18382066987. The next prime is 18382067087. The reversal of 18382067085 is 58076028381.
It is not a de Polignac number, because 18382067085 - 27 = 18382066957 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18382067087) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32248956 + ... + 32249525.
It is an arithmetic number, because the mean of its divisors is an integer number (1934954460).
Almost surely, 218382067085 is an apocalyptic number.
18382067085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18382067085 is a deficient number, since it is larger than the sum of its proper divisors (12577204275).
18382067085 is a wasteful number, since it uses less digits than its factorization.
18382067085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64498508.
The product of its (nonzero) digits is 645120, while the sum is 48.
The spelling of 18382067085 in words is "eighteen billion, three hundred eighty-two million, sixty-seven thousand, eighty-five".
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