Base | Representation |
---|---|
bin | 110111000011… |
… | …1101001100000 |
3 | 2000022121022101 |
4 | 1232013221200 |
5 | 24342222133 |
6 | 2510420144 |
7 | 500236561 |
oct | 156075140 |
9 | 60277271 |
10 | 28867168 |
11 | 15327370 |
12 | 9801654 |
13 | 5c99485 |
14 | 3b96168 |
15 | 280337d |
hex | 1b87a60 |
28867168 has 24 divisors (see below), whose sum is σ = 61999560. Its totient is φ = 13121280.
The previous prime is 28867159. The next prime is 28867177. The reversal of 28867168 is 86176882.
It is an interprime number because it is at equal distance from previous prime (28867159) and next prime (28867177).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40653 + ... + 41356.
It is an arithmetic number, because the mean of its divisors is an integer number (2583315).
Almost surely, 228867168 is an apocalyptic number.
It is an amenable number.
28867168 is an abundant number, since it is smaller than the sum of its proper divisors (33132392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28867168 is a wasteful number, since it uses less digits than its factorization.
28867168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82030 (or 82022 counting only the distinct ones).
The product of its digits is 258048, while the sum is 46.
The square root of 28867168 is about 5372.8175103943. The cubic root of 28867168 is about 306.7618817973.
The spelling of 28867168 in words is "twenty-eight million, eight hundred sixty-seven thousand, one hundred sixty-eight".
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