Base | Representation |
---|---|
bin | 11010110111101001… |
… | …100001011100101101 |
3 | 2202110200002112212110 |
4 | 122313221201130231 |
5 | 433041313403323 |
6 | 21130503154233 |
7 | 2040644524044 |
oct | 326751413455 |
9 | 82420075773 |
10 | 28850919213 |
11 | 11265656696 |
12 | 5712145979 |
13 | 294a2bb53c |
14 | 15799b155b |
15 | b3ccea793 |
hex | 6b7a6172d |
28850919213 has 16 divisors (see below), whose sum is σ = 38964727296. Its totient is φ = 18986800560.
The previous prime is 28850919179. The next prime is 28850919217. The reversal of 28850919213 is 31291905882.
It is not a de Polignac number, because 28850919213 - 210 = 28850918189 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28850919217) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67953 + ... + 249638.
It is an arithmetic number, because the mean of its divisors is an integer number (2435295456).
Almost surely, 228850919213 is an apocalyptic number.
It is an amenable number.
28850919213 is a deficient number, since it is larger than the sum of its proper divisors (10113808083).
28850919213 is a wasteful number, since it uses less digits than its factorization.
28850919213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 317984.
The product of its (nonzero) digits is 311040, while the sum is 48.
The spelling of 28850919213 in words is "twenty-eight billion, eight hundred fifty million, nine hundred nineteen thousand, two hundred thirteen".
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