Base | Representation |
---|---|
bin | 110110110111… |
… | …0010100011010 |
3 | 2000010022222210 |
4 | 1231232110122 |
5 | 24330412133 |
6 | 2504255550 |
7 | 466325235 |
oct | 155562432 |
9 | 60108883 |
10 | 28763418 |
11 | 15266422 |
12 | 97715b6 |
13 | 5c61198 |
14 | 3b6a41c |
15 | 27d2763 |
hex | 1b6e51a |
28763418 has 32 divisors (see below), whose sum is σ = 60652800. Its totient is φ = 9079616.
The previous prime is 28763417. The next prime is 28763453. The reversal of 28763418 is 81436782.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (28763417) 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, 7663 + ... + 10781.
It is an arithmetic number, because the mean of its divisors is an integer number (1895400).
Almost surely, 228763418 is an apocalyptic number.
28763418 is an abundant number, since it is smaller than the sum of its proper divisors (31889382).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28763418 is a wasteful number, since it uses less digits than its factorization.
28763418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3206.
The product of its digits is 64512, while the sum is 39.
The square root of 28763418 is about 5363.1537363756. The cubic root of 28763418 is about 306.3939349512.
The spelling of 28763418 in words is "twenty-eight million, seven hundred sixty-three thousand, four hundred eighteen".
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