Base | Representation |
---|---|
bin | 110110111111… |
… | …0110010110011 |
3 | 2000020202120002 |
4 | 1231332302303 |
5 | 24340042044 |
6 | 2505540215 |
7 | 500026046 |
oct | 155766263 |
9 | 60222502 |
10 | 28830899 |
11 | 15302099 |
12 | 97a466b |
13 | 5c85b06 |
14 | 3b86c5d |
15 | 27e774e |
hex | 1b7ecb3 |
28830899 has 8 divisors (see below), whose sum is σ = 30182400. Its totient is φ = 27505800.
The previous prime is 28830889. The next prime is 28830911. The reversal of 28830899 is 99803882.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28830899 - 28 = 28830643 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (28830869) 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 7 ways as a sum of consecutive naturals, for example, 4349 + ... + 8750.
It is an arithmetic number, because the mean of its divisors is an integer number (3772800).
Almost surely, 228830899 is an apocalyptic number.
28830899 is a deficient number, since it is larger than the sum of its proper divisors (1351501).
28830899 is a wasteful number, since it uses less digits than its factorization.
28830899 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13201.
The product of its (nonzero) digits is 248832, while the sum is 47.
The square root of 28830899 is about 5369.4412185999. The cubic root of 28830899 is about 306.6333550511.
The spelling of 28830899 in words is "twenty-eight million, eight hundred thirty thousand, eight hundred ninety-nine".
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