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Composite Number

3125

3125 is a odd composite number that follows 3124 and precedes 3126. It is composed of 6 distinct factors: 1, 5, 25, 125, 625, 3125. Its prime factorization can be written as 5^5. 3125 is classified as a deficient number based on the sum of its proper divisors. In computer science, 3125 is represented as 110000110101 in binary and C35 in hexadecimal. Historically, it is written as MMMCXXV in Roman numerals.

Roman Numeral
MMMCXXV
LatinClassic
Binary
110000110101
Base 2
Hexadecimal
C35
Base 16

Factor Analysis

6 Factors

Properties

ParityOdd
Perfect SquareNo
Perfect CubeNo
Digit Count4
Digit Sum11
Digital Root2
Sum of Factors3906
Aliquot Sum781
ClassificationDeficient
Prime Factors5
SequencesComposite numbers, Deficient numbers
Prime Factorization

The prime factorization (5^5) reveals 5 prime building blocks.

Canonical form
5^5
55555
Divisibility Insights
  • Divisible by 2

    3125 ends in 5, so it is odd.

  • Divisible by 3

    The digit sum 11 is not a multiple of 3.

  • Divisible by 4

    The last two digits 25 are not divisible by 4.

  • Divisible by 5

    3125 ends in 5, so it is divisible by 5.

  • Divisible by 6

    A number must be divisible by 2 and 3 to pass the 6-test.

  • Divisible by 9

    The digit sum 11 is not a multiple of 9.

  • Divisible by 10

    3125 does not end in 0.

  • Divisible by 11

    The alternating digit sum -1 is not a multiple of 11.

Sequence Membership

Deficient classification and digit analytics place 3125 within several notable number theory sequences:

Composite numbersDeficient numbers
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Deep dive

How 3125 breaks down

3125 carries 6 distinct factors and a digit signature of 11 (2 as the digital root). The deficient classification indicates that its proper divisors sum to 781, which stays below the number, offering a quick glimpse into its abundance profile.

Numeral conversions provide additional context: the binary form 110000110101 supports bitwise reasoning, hexadecimal C35 aligns with computing notation, and the Roman numeral MMMCXXV keeps the encyclopedic tradition alive. These attributes make 3125 useful for math olympiad problems, puzzle design, and code challenges alike.

Context

Where 3125 shows up

Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (31203130) to tune search ranges, and educators feature 3125 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 3125 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 3125

Is 3125 a prime number?

3125 is composite with 6 total factors and the prime factorization 5^5.

What is the prime factorization of 3125?

It breaks down as 5^5, multiplying the primes 5 × 5 × 5 × 5 × 5.

How is 3125 represented in binary and hexadecimal?

3125 converts to 110000110101 in binary and C35 in hexadecimal, which are helpful for computer science applications.

Is 3125 a perfect square, cube, or triangular number?

3125 is not a perfect square, is not a perfect cube, and is not triangular.

What are the digit sum and digital root of 3125?

The digits sum to 11, producing a digital root of 2. These tests power divisibility shortcuts for 3 and 9.