Base | Representation |
---|---|
bin | 11010110110011010… |
… | …000010110110011011 |
3 | 2202102012220001000200 |
4 | 122312122002312123 |
5 | 433021000201012 |
6 | 21124440433243 |
7 | 2040302450340 |
oct | 326632026633 |
9 | 82365801020 |
10 | 28830084507 |
11 | 11254916224 |
12 | 5707178823 |
13 | 2945ba5203 |
14 | 1576d0a7c7 |
15 | b3b0823dc |
hex | 6b6682d9b |
28830084507 has 12 divisors (see below), whose sum is σ = 47592520560. Its totient is φ = 16474333968.
The previous prime is 28830084497. The next prime is 28830084589. The reversal of 28830084507 is 70548003882.
It is not a de Polignac number, because 28830084507 - 231 = 26682600859 is a prime.
It is a super-2 number, since 2×288300845072 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (28830084007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228810132 + ... + 228810257.
It is an arithmetic number, because the mean of its divisors is an integer number (3966043380).
Almost surely, 228830084507 is an apocalyptic number.
28830084507 is a deficient number, since it is larger than the sum of its proper divisors (18762436053).
28830084507 is a wasteful number, since it uses less digits than its factorization.
28830084507 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 457620402 (or 457620399 counting only the distinct ones).
The product of its (nonzero) digits is 430080, while the sum is 45.
The spelling of 28830084507 in words is "twenty-eight billion, eight hundred thirty million, eighty-four thousand, five hundred seven".
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