Base | Representation |
---|---|
bin | 11101000100111… |
… | …000010011100100 |
3 | 1020222220202010200 |
4 | 131010320103210 |
5 | 1444340142333 |
6 | 120223350500 |
7 | 15042250164 |
oct | 3504702344 |
9 | 1228822120 |
10 | 487818468 |
11 | 2303a7265 |
12 | 117452430 |
13 | 7a0ab5a7 |
14 | 48b045a4 |
15 | 2cc5dc13 |
hex | 1d1384e4 |
487818468 has 72 divisors (see below), whose sum is σ = 1314206712. Its totient is φ = 152036352.
The previous prime is 487818439. The next prime is 487818469. The reversal of 487818468 is 864818784.
487818468 is a `hidden beast` number, since 487 + 81 + 84 + 6 + 8 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 222845184 + 264973284 = 14928^2 + 16278^2 .
It is not an unprimeable number, because it can be changed into a prime (487818469) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93546 + ... + 98622.
It is an arithmetic number, because the mean of its divisors is an integer number (18252871).
Almost surely, 2487818468 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 487818468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657103356).
487818468 is an abundant number, since it is smaller than the sum of its proper divisors (826388244).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
487818468 is a wasteful number, since it uses less digits than its factorization.
487818468 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5261 (or 5256 counting only the distinct ones).
The product of its digits is 2752512, while the sum is 54.
The square root of 487818468 is about 22086.6128684323. The cubic root of 487818468 is about 787.2018015339.
The spelling of 487818468 in words is "four hundred eighty-seven million, eight hundred eighteen thousand, four hundred sixty-eight".
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