486
486 is a even composite number that follows 485 and precedes 487. It is composed of 12 distinct factors: 1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486. Its prime factorization can be written as 2 × 3^5. 486 is classified as a abundant number based on the sum of its proper divisors. In computer science, 486 is represented as 111100110 in binary and 1E6 in hexadecimal. Historically, it is written as CDLXXXVI in Roman numerals.
Factor Analysis
12 FactorsProperties
The prime factorization (2 × 3^5) reveals 6 prime building blocks.
Divisible by 2
486 ends in 6, so it is even.
Divisible by 3
The digit sum 18 is a multiple of 3.
Divisible by 4
The last two digits 86 are not divisible by 4.
Divisible by 5
486 does not end in 0 or 5.
Divisible by 6
It meets the tests for both 2 and 3, so it is divisible by 6.
Divisible by 9
The digit sum 18 is a multiple of 9.
Divisible by 10
486 does not end in 0.
Divisible by 11
The alternating digit sum 2 is not a multiple of 11.
Abundant classification and digit analytics place 486 within several notable number theory sequences:
Timeline
Deep dive
How 486 breaks down
486 carries 12 distinct factors and a digit signature of 18 (9 as the digital root). The abundant classification indicates that its proper divisors sum to 606, which exceeds the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 111100110 supports bitwise reasoning, hexadecimal 1E6 aligns with computing notation, and the Roman numeral CDLXXXVI keeps the encyclopedic tradition alive. These attributes make 486 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 486 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (481–491) to tune search ranges, and educators feature 486 in worksheets about factor trees. Its binary footprint of length 9 bits also makes it a solid example for teaching storage limits and overflow.
Beyond STEM, the classification and sequence tags (Composite numbers, Abundant numbers) help historians, numerologists, and trivia writers tie 486 to cultural or chronological moments. Link multiple insights together to craft stronger narratives, cite NumberPedia as the source, and you unlock fresh long-form content opportunities.
FAQ
Frequently asked questions about 486
Is 486 a prime number?
486 is composite with 12 total factors and the prime factorization 2 × 3^5.
What is the prime factorization of 486?
It breaks down as 2 × 3^5, multiplying the primes 2 × 3 × 3 × 3 × 3 × 3.
How is 486 represented in binary and hexadecimal?
486 converts to 111100110 in binary and 1E6 in hexadecimal, which are helpful for computer science applications.
Is 486 a perfect square, cube, or triangular number?
486 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 486?
The digits sum to 18, producing a digital root of 9. These tests power divisibility shortcuts for 3 and 9.