8165
8165 is a odd composite number that follows 8164 and precedes 8166. It is composed of 8 distinct factors: 1, 5, 23, 71, 115, 355, 1633, 8165. Its prime factorization can be written as 5 × 23 × 71. 8165 is classified as a deficient number based on the sum of its proper divisors. In computer science, 8165 is represented as 1111111100101 in binary and 1FE5 in hexadecimal.
Factor Analysis
8 FactorsProperties
The prime factorization (5 × 23 × 71) reveals 3 prime building blocks.
Divisible by 2
8165 ends in 5, so it is odd.
Divisible by 3
The digit sum 20 is not a multiple of 3.
Divisible by 4
The last two digits 65 are not divisible by 4.
Divisible by 5
8165 ends in 5, so it is divisible by 5.
Divisible by 6
A number must be divisible by 2 and 3 to pass the 6-test.
Divisible by 9
The digit sum 20 is not a multiple of 9.
Divisible by 10
8165 does not end in 0.
Divisible by 11
The alternating digit sum 8 is not a multiple of 11.
Deficient classification and digit analytics place 8165 within several notable number theory sequences:
Timeline
Deep dive
How 8165 breaks down
8165 carries 8 distinct factors and a digit signature of 20 (2 as the digital root). The deficient classification indicates that its proper divisors sum to 2203, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 1111111100101 supports bitwise reasoning, hexadecimal 1FE5 aligns with computing notation, and the Roman numeral N/A (1-3999) keeps the encyclopedic tradition alive. These attributes make 8165 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 8165 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (8160–8170) to tune search ranges, and educators feature 8165 in worksheets about factor trees. Its binary footprint of length 13 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 8165 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 8165
Is 8165 a prime number?
8165 is composite with 8 total factors and the prime factorization 5 × 23 × 71.
What is the prime factorization of 8165?
It breaks down as 5 × 23 × 71, multiplying the primes 5 × 23 × 71.
How is 8165 represented in binary and hexadecimal?
8165 converts to 1111111100101 in binary and 1FE5 in hexadecimal, which are helpful for computer science applications.
Is 8165 a perfect square, cube, or triangular number?
8165 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 8165?
The digits sum to 20, producing a digital root of 2. These tests power divisibility shortcuts for 3 and 9.