118
118 is a even composite number that follows 117 and precedes 119. It is composed of 4 distinct factors: 1, 2, 59, 118. Its prime factorization can be written as 2 × 59. 118 is classified as a deficient number based on the sum of its proper divisors. In computer science, 118 is represented as 1110110 in binary and 76 in hexadecimal. Historically, it is written as CXVIII in Roman numerals.
Factor Analysis
4 FactorsProperties
The prime factorization (2 × 59) reveals 2 prime building blocks.
Divisible by 2
118 ends in 8, so it is even.
Divisible by 3
The digit sum 10 is not a multiple of 3.
Divisible by 4
The last two digits 18 are not divisible by 4.
Divisible by 5
118 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
118 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 118 within several notable number theory sequences:
Timeline
Deep dive
How 118 breaks down
118 carries 4 distinct factors and a digit signature of 10 (1 as the digital root). The deficient classification indicates that its proper divisors sum to 62, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 1110110 supports bitwise reasoning, hexadecimal 76 aligns with computing notation, and the Roman numeral CXVIII keeps the encyclopedic tradition alive. These attributes make 118 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 118 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (113–123) to tune search ranges, and educators feature 118 in worksheets about factor trees. Its binary footprint of length 7 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 118 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 118
Is 118 a prime number?
118 is composite with 4 total factors and the prime factorization 2 × 59.
What is the prime factorization of 118?
It breaks down as 2 × 59, multiplying the primes 2 × 59.
How is 118 represented in binary and hexadecimal?
118 converts to 1110110 in binary and 76 in hexadecimal, which are helpful for computer science applications.
Is 118 a perfect square, cube, or triangular number?
118 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 118?
The digits sum to 10, producing a digital root of 1. These tests power divisibility shortcuts for 3 and 9.