Base | Representation |
---|---|
bin | 10001001100011… |
… | …110111011011001 |
3 | 202002211120010122 |
4 | 101030132323121 |
5 | 1042323010311 |
6 | 44343123025 |
7 | 10102040243 |
oct | 2114367331 |
9 | 662746118 |
10 | 288485081 |
11 | 13892a125 |
12 | 80743475 |
13 | 479c8841 |
14 | 2a457093 |
15 | 1a4d70db |
hex | 1131eed9 |
288485081 has 8 divisors (see below), whose sum is σ = 291906720. Its totient is φ = 285072768.
The previous prime is 288485059. The next prime is 288485083. The reversal of 288485081 is 180584882.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 288485081 - 26 = 288485017 is a prime.
It is a super-2 number, since 2×2884850812 = 166447283919153122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (288485083) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74450 + ... + 78228.
It is an arithmetic number, because the mean of its divisors is an integer number (36488340).
Almost surely, 2288485081 is an apocalyptic number.
It is an amenable number.
288485081 is a deficient number, since it is larger than the sum of its proper divisors (3421639).
288485081 is an equidigital number, since it uses as much as digits as its factorization.
288485081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4663.
The product of its (nonzero) digits is 163840, while the sum is 44.
The square root of 288485081 is about 16984.8485715946. The cubic root of 288485081 is about 660.7560062045.
The spelling of 288485081 in words is "two hundred eighty-eight million, four hundred eighty-five thousand, eighty-one".
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