Base | Representation |
---|---|
bin | 110110011000… |
… | …1001001010100 |
3 | 1222122121021120 |
4 | 1230301021110 |
5 | 24244402402 |
6 | 2455043540 |
7 | 464232564 |
oct | 154611124 |
9 | 58577246 |
10 | 28512852 |
11 | 15105145 |
12 | 96705b0 |
13 | 5ba4114 |
14 | 3b02da4 |
15 | 27833bc |
hex | 1b31254 |
28512852 has 24 divisors (see below), whose sum is σ = 66851232. Its totient is φ = 9458400.
The previous prime is 28512833. The next prime is 28512853. The reversal of 28512852 is 25821582.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28512853) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3099 + ... + 8162.
It is an arithmetic number, because the mean of its divisors is an integer number (2785468).
Almost surely, 228512852 is an apocalyptic number.
It is an amenable number.
28512852 is an abundant number, since it is smaller than the sum of its proper divisors (38338380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28512852 is a wasteful number, since it uses less digits than its factorization.
28512852 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11479 (or 11477 counting only the distinct ones).
The product of its digits is 12800, while the sum is 33.
The square root of 28512852 is about 5339.7426904299. The cubic root of 28512852 is about 305.5016451348.
The spelling of 28512852 in words is "twenty-eight million, five hundred twelve thousand, eight hundred fifty-two".
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