698
698 is a even composite number that follows 697 and precedes 699. It is composed of 4 distinct factors: 1, 2, 349, 698. Its prime factorization can be written as 2 × 349. 698 is classified as a deficient number based on the sum of its proper divisors. In computer science, 698 is represented as 1010111010 in binary and 2BA in hexadecimal. Historically, it is written as DCXCVIII in Roman numerals.
Factor Analysis
4 FactorsProperties
The prime factorization (2 × 349) reveals 2 prime building blocks.
Divisible by 2
698 ends in 8, so it is even.
Divisible by 3
The digit sum 23 is not a multiple of 3.
Divisible by 4
The last two digits 98 are not divisible by 4.
Divisible by 5
698 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 23 is not a multiple of 9.
Divisible by 10
698 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 698 within several notable number theory sequences:
Timeline
Deep dive
How 698 breaks down
698 carries 4 distinct factors and a digit signature of 23 (5 as the digital root). The deficient classification indicates that its proper divisors sum to 352, which stays below the number, offering a quick glimpse into its abundance profile.
Numeral conversions provide additional context: the binary form 1010111010 supports bitwise reasoning, hexadecimal 2BA aligns with computing notation, and the Roman numeral DCXCVIII keeps the encyclopedic tradition alive. These attributes make 698 useful for math olympiad problems, puzzle design, and code challenges alike.
Context
Where 698 shows up
Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (693–703) to tune search ranges, and educators feature 698 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 698 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 698
Is 698 a prime number?
698 is composite with 4 total factors and the prime factorization 2 × 349.
What is the prime factorization of 698?
It breaks down as 2 × 349, multiplying the primes 2 × 349.
How is 698 represented in binary and hexadecimal?
698 converts to 1010111010 in binary and 2BA in hexadecimal, which are helpful for computer science applications.
Is 698 a perfect square, cube, or triangular number?
698 is not a perfect square, is not a perfect cube, and is not triangular.
What are the digit sum and digital root of 698?
The digits sum to 23, producing a digital root of 5. These tests power divisibility shortcuts for 3 and 9.