Base | Representation |
---|---|
bin | 10001101011011010… |
… | …111100100110110101 |
3 | 1210222220011100111010 |
4 | 101223122330212311 |
5 | 302333404022120 |
6 | 12415324102433 |
7 | 1241252101446 |
oct | 215332744665 |
9 | 53886140433 |
10 | 18982095285 |
11 | 806099715a |
12 | 3819094a19 |
13 | 1a3683bc5a |
14 | cc10372cd |
15 | 7616ee7e0 |
hex | 46b6bc9b5 |
18982095285 has 32 divisors (see below), whose sum is σ = 30839316480. Its totient is φ = 9967940928.
The previous prime is 18982095281. The next prime is 18982095287. The reversal of 18982095285 is 58259028981.
It is not a de Polignac number, because 18982095285 - 22 = 18982095281 is a prime.
It is a Smith number, since the sum of its digits (57) 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 (18982095281) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3372984 + ... + 3378606.
It is an arithmetic number, because the mean of its divisors is an integer number (963728640).
Almost surely, 218982095285 is an apocalyptic number.
18982095285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18982095285 is a deficient number, since it is larger than the sum of its proper divisors (11857221195).
18982095285 is a wasteful number, since it uses less digits than its factorization.
18982095285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9057.
The product of its (nonzero) digits is 4147200, while the sum is 57.
The spelling of 18982095285 in words is "eighteen billion, nine hundred eighty-two million, ninety-five thousand, two hundred eighty-five".
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