Base | Representation |
---|---|
bin | 110101110110… |
… | …1111000110000 |
3 | 1222010121101011 |
4 | 1223231320300 |
5 | 24212043420 |
6 | 2445120304 |
7 | 462004444 |
oct | 153557060 |
9 | 58117334 |
10 | 28237360 |
11 | 14a37168 |
12 | 9559094 |
13 | 5b088c8 |
14 | 3a70824 |
15 | 272b95a |
hex | 1aede30 |
28237360 has 40 divisors (see below), whose sum is σ = 65888640. Its totient is φ = 11254272.
The previous prime is 28237337. The next prime is 28237381. The reversal of 28237360 is 6373282.
It is a tau number, because it is divible by the number of its divisors (40).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32289 + ... + 33151.
It is an arithmetic number, because the mean of its divisors is an integer number (1647216).
It is a vampire number, since it can be written as 3272 ⋅ 8630 (with its own digits).
Almost surely, 228237360 is an apocalyptic number.
28237360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
28237360 is an abundant number, since it is smaller than the sum of its proper divisors (37651280).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28237360 is a wasteful number, since it uses less digits than its factorization.
28237360 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1285 (or 1279 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 31.
The square root of 28237360 is about 5313.8837021523. The cubic root of 28237360 is about 304.5145372126.
The spelling of 28237360 in words is "twenty-eight million, two hundred thirty-seven thousand, three hundred sixty".
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