Base | Representation |
---|---|
bin | 10000110010100100… |
… | …100000101000100001 |
3 | 1201112102102120110200 |
4 | 100302210200220201 |
5 | 243410221111313 |
6 | 12140533015413 |
7 | 1205521012554 |
oct | 206244405041 |
9 | 51472376420 |
10 | 18028300833 |
11 | 7711562284 |
12 | 35b1784569 |
13 | 191405c03a |
14 | c304b669b |
15 | 707ae8b73 |
hex | 432920a21 |
18028300833 has 6 divisors (see below), whose sum is σ = 26040878994. Its totient is φ = 12018867216.
The previous prime is 18028300831. The next prime is 18028300837. The reversal of 18028300833 is 33800382081.
It can be written as a sum of positive squares in only one way, i.e., 9656599824 + 8371701009 = 98268^2 + 91497^2 .
It is not a de Polignac number, because 18028300833 - 21 = 18028300831 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18028300831) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1001572260 + ... + 1001572277.
It is an arithmetic number, because the mean of its divisors is an integer number (4340146499).
Almost surely, 218028300833 is an apocalyptic number.
It is an amenable number.
18028300833 is a deficient number, since it is larger than the sum of its proper divisors (8012578161).
18028300833 is a wasteful number, since it uses less digits than its factorization.
18028300833 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2003144543 (or 2003144540 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The spelling of 18028300833 in words is "eighteen billion, twenty-eight million, three hundred thousand, eight hundred thirty-three".
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