Base | Representation |
---|---|
bin | 10001000110111… |
… | …011000001000100 |
3 | 202000002111101120 |
4 | 101012323001010 |
5 | 1041434333033 |
6 | 44251553540 |
7 | 10053456123 |
oct | 2106730104 |
9 | 660074346 |
10 | 287027268 |
11 | 138023920 |
12 | 8015b8b0 |
13 | 47608128 |
14 | 2a197aba |
15 | 1a2ea1b3 |
hex | 111bb044 |
287027268 has 96 divisors (see below), whose sum is σ = 764588160. Its totient is φ = 83005440.
The previous prime is 287027267. The next prime is 287027311. The reversal of 287027268 is 862720782.
It is not an unprimeable number, because it can be changed into a prime (287027267) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370930 + ... + 371702.
It is an arithmetic number, because the mean of its divisors is an integer number (7964460).
Almost surely, 2287027268 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 287027268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382294080).
287027268 is an abundant number, since it is smaller than the sum of its proper divisors (477560892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
287027268 is a wasteful number, since it uses less digits than its factorization.
287027268 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 917 (or 915 counting only the distinct ones).
The product of its (nonzero) digits is 150528, while the sum is 42.
The square root of 287027268 is about 16941.8791165561. The cubic root of 287027268 is about 659.6411180208.
The spelling of 287027268 in words is "two hundred eighty-seven million, twenty-seven thousand, two hundred sixty-eight".
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