Base | Representation |
---|---|
bin | 10001000001100101… |
… | …101111101111000001 |
3 | 1202011222120121010020 |
4 | 101001211233233001 |
5 | 244414223024243 |
6 | 12221533524053 |
7 | 1215000561633 |
oct | 210145575701 |
9 | 52158517106 |
10 | 18280283073 |
11 | 783081a268 |
12 | 3662043629 |
13 | 1954316a60 |
14 | c55b4aa53 |
15 | 71ecc0283 |
hex | 44196fbc1 |
18280283073 has 32 divisors (see below), whose sum is σ = 27822364416. Its totient is φ = 10576355328.
The previous prime is 18280283017. The next prime is 18280283111. The reversal of 18280283073 is 37038208281.
It is not a de Polignac number, because 18280283073 - 26 = 18280283009 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18280283003) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 626865 + ... + 655377.
It is an arithmetic number, because the mean of its divisors is an integer number (869448888).
Almost surely, 218280283073 is an apocalyptic number.
18280283073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
18280283073 is a deficient number, since it is larger than the sum of its proper divisors (9542081343).
18280283073 is a wasteful number, since it uses less digits than its factorization.
18280283073 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29513.
The product of its (nonzero) digits is 129024, while the sum is 42.
The spelling of 18280283073 in words is "eighteen billion, two hundred eighty million, two hundred eighty-three thousand, seventy-three".
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