806
806 is a even composite number that follows 805 and precedes 807. It is composed of 8 distinct factors: 1, 2, 13, 26, 31, 62, 403, 806. Its prime factorization can be written as 2 × 13 × 31. 806 is classified as a deficient number based on the sum of its proper divisors. In computer science, 806 is represented as 1100100110 in binary and 326 in hexadecimal. Historically, it is written as DCCCVI in Roman numerals.
Factor Analysis
8 FactorsProperties
The prime factorization (2 × 13 × 31) reveals 3 prime building blocks.
Divisible by 2
806 ends in 6, so it is even.
Divisible by 3
The digit sum 14 is not a multiple of 3.
Divisible by 4
The last two digits 06 are not divisible by 4.
Divisible by 5
806 does not end in 0 or 5.
Divisible by 6
A number must be divisible by 2 and 3 to pass the 6-test.
Divisible by 9
The digit sum 14 is not a multiple of 9.
Divisible by 10
806 does not end in 0.
Divisible by 11
The alternating digit sum 14 is not a multiple of 11.
Deficient classification and digit analytics place 806 within several notable number theory sequences:
Timeline
Deep dive
How 806 breaks down
806 carries 8 distinct factors and a digit signature of 14 (5 as the digital root). The deficient classification indicates that its proper divisors sum to 538, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 1100100110 supports bitwise reasoning, hexadecimal 326 aligns with computing notation, and the Roman numeral DCCCVI keeps the encyclopedic tradition alive. These attributes make 806 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 806 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (801–811) to tune search ranges, and educators feature 806 in worksheets about factor trees. Its binary footprint of length 10 bits also makes it a solid example for teaching storage limits and overflow.
Beyond STEM, the classification and sequence tags (Composite numbers, Deficient numbers) help historians, numerologists, and trivia writers tie 806 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 806
Is 806 a prime number?
806 is composite with 8 total factors and the prime factorization 2 × 13 × 31.
What is the prime factorization of 806?
It breaks down as 2 × 13 × 31, multiplying the primes 2 × 13 × 31.
How is 806 represented in binary and hexadecimal?
806 converts to 1100100110 in binary and 326 in hexadecimal, which are helpful for computer science applications.
Is 806 a perfect square, cube, or triangular number?
806 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 806?
The digits sum to 14, producing a digital root of 5. These tests power divisibility shortcuts for 3 and 9.