N
NumberPedia
Menu

© 2025 NumberPedia

Composite Number

3638

3638 is a even composite number that follows 3637 and precedes 3639. It is composed of 8 distinct factors: 1, 2, 17, 34, 107, 214, 1819, 3638. Its prime factorization can be written as 2 × 17 × 107. 3638 is classified as a deficient number based on the sum of its proper divisors. In computer science, 3638 is represented as 111000110110 in binary and E36 in hexadecimal. Historically, it is written as MMMDCXXXVIII in Roman numerals.

Roman Numeral
MMMDCXXXVIII
LatinClassic
Binary
111000110110
Base 2
Hexadecimal
E36
Base 16

Factor Analysis

8 Factors

Properties

ParityEven
Perfect SquareNo
Perfect CubeNo
Digit Count4
Digit Sum20
Digital Root2
Sum of Factors5832
Aliquot Sum2194
ClassificationDeficient
Prime Factors3
SequencesComposite numbers, Deficient numbers
Prime Factorization

The prime factorization (2 × 17 × 107) reveals 3 prime building blocks.

Canonical form
2 × 17 × 107
217107
Divisibility Insights
  • Divisible by 2

    3638 ends in 8, so it is even.

  • Divisible by 3

    The digit sum 20 is not a multiple of 3.

  • Divisible by 4

    The last two digits 38 are not divisible by 4.

  • Divisible by 5

    3638 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 20 is not a multiple of 9.

  • Divisible by 10

    3638 does not end in 0.

  • Divisible by 11

    The alternating digit sum -8 is not a multiple of 11.

Sequence Membership

Deficient classification and digit analytics place 3638 within several notable number theory sequences:

Composite numbersDeficient numbers
Advertisement

Deep dive

How 3638 breaks down

3638 carries 8 distinct factors and a digit signature of 20 (2 as the digital root). The deficient classification indicates that its proper divisors sum to 2194, which stays below the number, offering a quick glimpse into its abundance profile.

Numeral conversions provide additional context: the binary form 111000110110 supports bitwise reasoning, hexadecimal E36 aligns with computing notation, and the Roman numeral MMMDCXXXVIII keeps the encyclopedic tradition alive. These attributes make 3638 useful for math olympiad problems, puzzle design, and code challenges alike.

Context

Where 3638 shows up

Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (36333643) to tune search ranges, and educators feature 3638 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 3638 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 3638

Is 3638 a prime number?

3638 is composite with 8 total factors and the prime factorization 2 × 17 × 107.

What is the prime factorization of 3638?

It breaks down as 2 × 17 × 107, multiplying the primes 2 × 17 × 107.

How is 3638 represented in binary and hexadecimal?

3638 converts to 111000110110 in binary and E36 in hexadecimal, which are helpful for computer science applications.

Is 3638 a perfect square, cube, or triangular number?

3638 is not a perfect square, is not a perfect cube, and is not triangular.

What are the digit sum and digital root of 3638?

The digits sum to 20, producing a digital root of 2. These tests power divisibility shortcuts for 3 and 9.