Base | Representation |
---|---|
bin | 10001000101110000… |
… | …110010010101101101 |
3 | 1202100212022010100020 |
4 | 101011300302111231 |
5 | 300040133124224 |
6 | 12232514152353 |
7 | 1216510600434 |
oct | 210560622555 |
9 | 52325263306 |
10 | 18350286189 |
11 | 7867292684 |
12 | 36815826b9 |
13 | 1965986b11 |
14 | c6117011b |
15 | 725eebc79 |
hex | 445c3256d |
18350286189 has 8 divisors (see below), whose sum is σ = 24472704480. Its totient is φ = 12230696016.
The previous prime is 18350286109. The next prime is 18350286221. The reversal of 18350286189 is 98168205381.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-18350286189 is a prime.
It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18350286109) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691842 + ... + 717875.
It is an arithmetic number, because the mean of its divisors is an integer number (3059088060).
Almost surely, 218350286189 is an apocalyptic number.
It is an amenable number.
18350286189 is a deficient number, since it is larger than the sum of its proper divisors (6122418291).
18350286189 is a wasteful number, since it uses less digits than its factorization.
18350286189 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1414059.
The product of its (nonzero) digits is 829440, while the sum is 51.
The spelling of 18350286189 in words is "eighteen billion, three hundred fifty million, two hundred eighty-six thousand, one hundred eighty-nine".
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