2143
2143 is a odd prime number that follows 2142 and precedes 2144. As a prime number, 2143 is only divisible by 1 and itself. It holds a unique position in the sequence of integers. Its prime factorization is simply 2143. 2143 is classified as a deficient number based on the sum of its proper divisors. In computer science, 2143 is represented as 100001011111 in binary and 85F in hexadecimal. Historically, it is written as MMCXLIII in Roman numerals.
Factor Analysis
2 FactorsProperties
2143 is prime, so its only factors are 1 and 2143.
Divisible by 2
2143 ends in 3, so it is odd.
Divisible by 3
The digit sum 10 is not a multiple of 3.
Divisible by 4
The last two digits 43 are not divisible by 4.
Divisible by 5
2143 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 10 is not a multiple of 9.
Divisible by 10
2143 does not end in 0.
Divisible by 11
The alternating digit sum 2 is not a multiple of 11.
Deficient classification and digit analytics place 2143 within several notable number theory sequences:
Timeline
Deep dive
How 2143 breaks down
2143 carries 2 distinct factors and a digit signature of 10 (1 as the digital root). The deficient classification indicates that its proper divisors sum to 1, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 100001011111 supports bitwise reasoning, hexadecimal 85F aligns with computing notation, and the Roman numeral MMCXLIII keeps the encyclopedic tradition alive. These attributes make 2143 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 2143 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (2138–2148) to tune search ranges, and educators feature 2143 in worksheets about prime identification. Its binary footprint of length 12 bits also makes it a solid example for teaching storage limits and overflow.
Beyond STEM, the classification and sequence tags (Prime numbers, Deficient numbers) help historians, numerologists, and trivia writers tie 2143 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 2143
Is 2143 a prime number?
2143 is prime, meaning it is only divisible by 1 and itself.
What is the prime factorization of 2143?
2143 is already prime, so the factorization is simply 2143.
How is 2143 represented in binary and hexadecimal?
2143 converts to 100001011111 in binary and 85F in hexadecimal, which are helpful for computer science applications.
Is 2143 a perfect square, cube, or triangular number?
2143 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 2143?
The digits sum to 10, producing a digital root of 1. These tests power divisibility shortcuts for 3 and 9.