N
NumberPedia
Menu

© 2025 NumberPedia

Composite Number

3669

3669 is a odd composite number that follows 3668 and precedes 3670. It is composed of 4 distinct factors: 1, 3, 1223, 3669. Its prime factorization can be written as 3 × 1223. 3669 is classified as a deficient number based on the sum of its proper divisors. In computer science, 3669 is represented as 111001010101 in binary and E55 in hexadecimal. Historically, it is written as MMMDCLXIX in Roman numerals.

Roman Numeral
MMMDCLXIX
LatinClassic
Binary
111001010101
Base 2
Hexadecimal
E55
Base 16

Factor Analysis

4 Factors

Properties

ParityOdd
Perfect SquareNo
Perfect CubeNo
Digit Count4
Digit Sum24
Digital Root6
Sum of Factors4896
Aliquot Sum1227
ClassificationDeficient
Prime Factors2
SequencesComposite numbers, Deficient numbers
Prime Factorization

The prime factorization (3 × 1223) reveals 2 prime building blocks.

Canonical form
3 × 1223
31223
Divisibility Insights
  • Divisible by 2

    3669 ends in 9, so it is odd.

  • Divisible by 3

    The digit sum 24 is a multiple of 3.

  • Divisible by 4

    The last two digits 69 are not divisible by 4.

  • Divisible by 5

    3669 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 24 is not a multiple of 9.

  • Divisible by 10

    3669 does not end in 0.

  • Divisible by 11

    The alternating digit sum -6 is not a multiple of 11.

Sequence Membership

Deficient classification and digit analytics place 3669 within several notable number theory sequences:

Composite numbersDeficient numbers
Advertisement

Deep dive

How 3669 breaks down

3669 carries 4 distinct factors and a digit signature of 24 (6 as the digital root). The deficient classification indicates that its proper divisors sum to 1227, which stays below the number, offering a quick glimpse into its abundance profile.

Numeral conversions provide additional context: the binary form 111001010101 supports bitwise reasoning, hexadecimal E55 aligns with computing notation, and the Roman numeral MMMDCLXIX keeps the encyclopedic tradition alive. These attributes make 3669 useful for math olympiad problems, puzzle design, and code challenges alike.

Context

Where 3669 shows up

Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (36643674) to tune search ranges, and educators feature 3669 in worksheets about factor trees. 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 (Composite numbers, Deficient numbers) help historians, numerologists, and trivia writers tie 3669 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 3669

Is 3669 a prime number?

3669 is composite with 4 total factors and the prime factorization 3 × 1223.

What is the prime factorization of 3669?

It breaks down as 3 × 1223, multiplying the primes 3 × 1223.

How is 3669 represented in binary and hexadecimal?

3669 converts to 111001010101 in binary and E55 in hexadecimal, which are helpful for computer science applications.

Is 3669 a perfect square, cube, or triangular number?

3669 is not a perfect square, is not a perfect cube, and is not triangular.

What are the digit sum and digital root of 3669?

The digits sum to 24, producing a digital root of 6. These tests power divisibility shortcuts for 3 and 9.