Base | Representation |
---|---|
bin | 110110111111… |
… | …0101110101001 |
3 | 2000020202012020 |
4 | 1231332232221 |
5 | 24340040013 |
6 | 2505535053 |
7 | 500025216 |
oct | 155765651 |
9 | 60222166 |
10 | 28830633 |
11 | 15301977 |
12 | 97a4489 |
13 | 5c85960 |
14 | 3b86b0d |
15 | 27e7623 |
hex | 1b7eba9 |
28830633 has 16 divisors (see below), whose sum is σ = 41548416. Its totient is φ = 17677440.
The previous prime is 28830601. The next prime is 28830643. The reversal of 28830633 is 33603882.
It is not a de Polignac number, because 28830633 - 25 = 28830601 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28830594 and 28830603.
It is not an unprimeable number, because it can be changed into a prime (28830643) 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 15 ways as a sum of consecutive naturals, for example, 10941 + ... + 13317.
It is an arithmetic number, because the mean of its divisors is an integer number (2596776).
Almost surely, 228830633 is an apocalyptic number.
It is an amenable number.
28830633 is a deficient number, since it is larger than the sum of its proper divisors (12717783).
28830633 is a wasteful number, since it uses less digits than its factorization.
28830633 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2704.
The product of its (nonzero) digits is 20736, while the sum is 33.
The square root of 28830633 is about 5369.4164487400. The cubic root of 28830633 is about 306.6324120267.
The spelling of 28830633 in words is "twenty-eight million, eight hundred thirty thousand, six hundred thirty-three".
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