Base | Representation |
---|---|
bin | 110110111111… |
… | …1110001001101 |
3 | 2000020222001000 |
4 | 1231333301031 |
5 | 24340204033 |
6 | 2510010513 |
7 | 500043513 |
oct | 155776115 |
9 | 60228030 |
10 | 28834893 |
11 | 1530509a |
12 | 97a6a39 |
13 | 5c87889 |
14 | 3b884b3 |
15 | 27e8a13 |
hex | 1b7fc4d |
28834893 has 32 divisors (see below), whose sum is σ = 45388800. Its totient is φ = 18052848.
The previous prime is 28834891. The next prime is 28834933. The reversal of 28834893 is 39843882.
It is not a de Polignac number, because 28834893 - 21 = 28834891 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28834891) 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, 36246 + ... + 37032.
It is an arithmetic number, because the mean of its divisors is an integer number (1418400).
Almost surely, 228834893 is an apocalyptic number.
28834893 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
28834893 is a deficient number, since it is larger than the sum of its proper divisors (16553907).
28834893 is a wasteful number, since it uses less digits than its factorization.
28834893 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 878 (or 872 counting only the distinct ones).
The product of its digits is 331776, while the sum is 45.
The square root of 28834893 is about 5369.8131252400. The cubic root of 28834893 is about 306.6475139005.
It can be divided in two parts, 2883 and 4893, that added together give a 5-th power (7776 = 65).
The spelling of 28834893 in words is "twenty-eight million, eight hundred thirty-four thousand, eight hundred ninety-three".
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