Base | Representation |
---|---|
bin | 1000110100001111010 |
3 | 112200021122 |
4 | 1012201322 |
5 | 33221030 |
6 | 10105242 |
7 | 2312150 |
oct | 1064172 |
9 | 480248 |
10 | 288890 |
11 | 188058 |
12 | 11b222 |
13 | a1654 |
14 | 773d0 |
15 | 5a8e5 |
hex | 4687a |
288890 has 16 divisors (see below), whose sum is σ = 594432. Its totient is φ = 99024.
The previous prime is 288877. The next prime is 288907. The reversal of 288890 is 98882.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 288890.
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, 1994 + ... + 2133.
It is an arithmetic number, because the mean of its divisors is an integer number (37152).
2288890 is an apocalyptic number.
288890 is an abundant number, since it is smaller than the sum of its proper divisors (305542).
It is a weird number, because it is abundant, but not a pseudoperfect number.
288890 is a wasteful number, since it uses less digits than its factorization.
288890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4141.
The product of its (nonzero) digits is 9216, while the sum is 35.
The square root of 288890 is about 537.4848835084. The cubic root of 288890 is about 66.1065008411.
The spelling of 288890 in words is "two hundred eighty-eight thousand, eight hundred ninety".
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