Base | Representation |
---|---|
bin | 110110111110… |
… | …1111001011110 |
3 | 2000020120112012 |
4 | 1231331321132 |
5 | 24334432410 |
6 | 2505511222 |
7 | 500012255 |
oct | 155757136 |
9 | 60216465 |
10 | 28827230 |
11 | 152aa363 |
12 | 97a2512 |
13 | 5c84243 |
14 | 3b8579c |
15 | 27e6605 |
hex | 1b7de5e |
28827230 has 32 divisors (see below), whose sum is σ = 53460000. Its totient is φ = 11187072.
The previous prime is 28827209. The next prime is 28827233. The reversal of 28827230 is 3272882.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28827233) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57521 + ... + 58019.
It is an arithmetic number, because the mean of its divisors is an integer number (1670625).
Almost surely, 228827230 is an apocalyptic number.
28827230 is a deficient number, since it is larger than the sum of its proper divisors (24632770).
28827230 is a wasteful number, since it uses less digits than its factorization.
28827230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 668.
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 28827230 is about 5369.0995520664. The cubic root of 28827230 is about 306.6203471840.
The spelling of 28827230 in words is "twenty-eight million, eight hundred twenty-seven thousand, two hundred thirty".
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