Base | Representation |
---|---|
bin | 110111000010… |
… | …0101010101100 |
3 | 2000021222120002 |
4 | 1232010222230 |
5 | 24341324311 |
6 | 2510243432 |
7 | 500156144 |
oct | 156045254 |
9 | 60258502 |
10 | 28854956 |
11 | 15319179 |
12 | 97b6578 |
13 | 5c93a50 |
14 | 3b91924 |
15 | 27ee93b |
hex | 1b84aac |
28854956 has 24 divisors (see below), whose sum is σ = 54535824. Its totient is φ = 13279680.
The previous prime is 28854941. The next prime is 28854961. The reversal of 28854956 is 65945882.
It is a self number, because there is not a number n which added to its sum of digits gives 28854956.
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, 26666 + ... + 27726.
It is an arithmetic number, because the mean of its divisors is an integer number (2272326).
Almost surely, 228854956 is an apocalyptic number.
28854956 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
28854956 is a deficient number, since it is larger than the sum of its proper divisors (25680868).
28854956 is a wasteful number, since it uses less digits than its factorization.
28854956 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1601 (or 1599 counting only the distinct ones).
The product of its digits is 691200, while the sum is 47.
The square root of 28854956 is about 5371.6809287224. The cubic root of 28854956 is about 306.7186180627.
The spelling of 28854956 in words is "twenty-eight million, eight hundred fifty-four thousand, nine hundred fifty-six".
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