Base | Representation |
---|---|
bin | 110101100010… |
… | …1111101110001 |
3 | 1221211022001220 |
4 | 1223011331301 |
5 | 24141330331 |
6 | 2441415253 |
7 | 460423635 |
oct | 153057561 |
9 | 57738056 |
10 | 28073841 |
11 | 14935324 |
12 | 949a529 |
13 | 5a7c353 |
14 | 3a2adc5 |
15 | 26e8296 |
hex | 1ac5f71 |
28073841 has 8 divisors (see below), whose sum is σ = 37472160. Its totient is φ = 18695712.
The previous prime is 28073839. The next prime is 28073863. The reversal of 28073841 is 14837082.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28073841 - 21 = 28073839 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (28073831) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1431 + ... + 7628.
It is an arithmetic number, because the mean of its divisors is an integer number (4684020).
Almost surely, 228073841 is an apocalyptic number.
It is an amenable number.
28073841 is a deficient number, since it is larger than the sum of its proper divisors (9398319).
28073841 is a wasteful number, since it uses less digits than its factorization.
28073841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10095.
The product of its (nonzero) digits is 10752, while the sum is 33.
The square root of 28073841 is about 5298.4753467389. The cubic root of 28073841 is about 303.9255971252.
The spelling of 28073841 in words is "twenty-eight million, seventy-three thousand, eight hundred forty-one".
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