Base | Representation |
---|---|
bin | 10001001010111… |
… | …001000110010001 |
3 | 202002001100222122 |
4 | 101022321012101 |
5 | 1042221133420 |
6 | 44330144025 |
7 | 10065352232 |
oct | 2112710621 |
9 | 662040878 |
10 | 288067985 |
11 | 138674817 |
12 | 80582015 |
13 | 478b0a3a |
14 | 2a389089 |
15 | 1a453725 |
hex | 112b9191 |
288067985 has 32 divisors (see below), whose sum is σ = 371132928. Its totient is φ = 214156800.
The previous prime is 288067973. The next prime is 288068057. The reversal of 288067985 is 589760882.
It is not a de Polignac number, because 288067985 - 26 = 288067921 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (53).
It is a Duffinian number.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 920189 + ... + 920501.
It is an arithmetic number, because the mean of its divisors is an integer number (11597904).
Almost surely, 2288067985 is an apocalyptic number.
It is an amenable number.
288067985 is a deficient number, since it is larger than the sum of its proper divisors (83064943).
288067985 is a wasteful number, since it uses less digits than its factorization.
288067985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 545.
The product of its (nonzero) digits is 1935360, while the sum is 53.
The square root of 288067985 is about 16972.5656575545. The cubic root of 288067985 is about 660.4374090064.
The spelling of 288067985 in words is "two hundred eighty-eight million, sixty-seven thousand, nine hundred eighty-five".
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