Base | Representation |
---|---|
bin | 1000110101011001101 |
3 | 112201002200 |
4 | 1012223031 |
5 | 33230420 |
6 | 10112113 |
7 | 2313660 |
oct | 1065315 |
9 | 481080 |
10 | 289485 |
11 | 188549 |
12 | 11b639 |
13 | a19c1 |
14 | 776d7 |
15 | 5ab90 |
hex | 46acd |
289485 has 24 divisors (see below), whose sum is σ = 574080. Its totient is φ = 132192.
The previous prime is 289477. The next prime is 289489. The reversal of 289485 is 584982.
It is not a de Polignac number, because 289485 - 23 = 289477 is a prime.
It is a Curzon number.
289485 is a lucky number.
It is a plaindrome in base 16.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (289489) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145 + ... + 774.
It is an arithmetic number, because the mean of its divisors is an integer number (23920).
2289485 is an apocalyptic number.
It is an amenable number.
289485 is a deficient number, since it is larger than the sum of its proper divisors (284595).
289485 is a wasteful number, since it uses less digits than its factorization.
289485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 937 (or 934 counting only the distinct ones).
The product of its digits is 23040, while the sum is 36.
The square root of 289485 is about 538.0381027399. The cubic root of 289485 is about 66.1518541994.
The spelling of 289485 in words is "two hundred eighty-nine thousand, four hundred eighty-five".
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