1149
1149 is a odd composite number that follows 1148 and precedes 1150. It is composed of 4 distinct factors: 1, 3, 383, 1149. Its prime factorization can be written as 3 × 383. 1149 is classified as a deficient number based on the sum of its proper divisors. In computer science, 1149 is represented as 10001111101 in binary and 47D in hexadecimal. Historically, it is written as MCXLIX in Roman numerals.
Factor Analysis
4 FactorsProperties
The prime factorization (3 × 383) reveals 2 prime building blocks.
Divisible by 2
1149 ends in 9, so it is odd.
Divisible by 3
The digit sum 15 is a multiple of 3.
Divisible by 4
The last two digits 49 are not divisible by 4.
Divisible by 5
1149 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 15 is not a multiple of 9.
Divisible by 10
1149 does not end in 0.
Divisible by 11
The alternating digit sum -5 is not a multiple of 11.
Deficient classification and digit analytics place 1149 within several notable number theory sequences:
Timeline
Deep dive
How 1149 breaks down
1149 carries 4 distinct factors and a digit signature of 15 (6 as the digital root). The deficient classification indicates that its proper divisors sum to 387, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 10001111101 supports bitwise reasoning, hexadecimal 47D aligns with computing notation, and the Roman numeral MCXLIX keeps the encyclopedic tradition alive. These attributes make 1149 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 1149 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (1144–1154) to tune search ranges, and educators feature 1149 in worksheets about factor trees. Its binary footprint of length 11 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 1149 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 1149
Is 1149 a prime number?
1149 is composite with 4 total factors and the prime factorization 3 × 383.
What is the prime factorization of 1149?
It breaks down as 3 × 383, multiplying the primes 3 × 383.
How is 1149 represented in binary and hexadecimal?
1149 converts to 10001111101 in binary and 47D in hexadecimal, which are helpful for computer science applications.
Is 1149 a perfect square, cube, or triangular number?
1149 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 1149?
The digits sum to 15, producing a digital root of 6. These tests power divisibility shortcuts for 3 and 9.