808
808 is a even composite number that follows 807 and precedes 809. It is composed of 8 distinct factors: 1, 2, 4, 8, 101, 202, 404, 808. Its prime factorization can be written as 2^3 × 101. 808 is classified as a deficient number based on the sum of its proper divisors. In computer science, 808 is represented as 1100101000 in binary and 328 in hexadecimal. Historically, it is written as DCCCVIII in Roman numerals.
Factor Analysis
8 FactorsProperties
The prime factorization (2^3 × 101) reveals 4 prime building blocks.
Divisible by 2
808 ends in 8, so it is even.
Divisible by 3
The digit sum 16 is not a multiple of 3.
Divisible by 4
The last two digits 08 form a multiple of 4.
Divisible by 5
808 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 16 is not a multiple of 9.
Divisible by 10
808 does not end in 0.
Divisible by 11
The alternating digit sum 16 is not a multiple of 11.
Deficient classification and digit analytics place 808 within several notable number theory sequences:
Timeline
Deep dive
How 808 breaks down
808 carries 8 distinct factors and a digit signature of 16 (7 as the digital root). The deficient classification indicates that its proper divisors sum to 722, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 1100101000 supports bitwise reasoning, hexadecimal 328 aligns with computing notation, and the Roman numeral DCCCVIII keeps the encyclopedic tradition alive. These attributes make 808 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 808 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (803–813) to tune search ranges, and educators feature 808 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 808 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 808
Is 808 a prime number?
808 is composite with 8 total factors and the prime factorization 2^3 × 101.
What is the prime factorization of 808?
It breaks down as 2^3 × 101, multiplying the primes 2 × 2 × 2 × 101.
How is 808 represented in binary and hexadecimal?
808 converts to 1100101000 in binary and 328 in hexadecimal, which are helpful for computer science applications.
Is 808 a perfect square, cube, or triangular number?
808 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 808?
The digits sum to 16, producing a digital root of 7. These tests power divisibility shortcuts for 3 and 9.