N
NumberPedia
Menu

© 2025 NumberPedia

Composite Number

7971

7971 is a odd composite number that follows 7970 and precedes 7972. It is composed of 4 distinct factors: 1, 3, 2657, 7971. Its prime factorization can be written as 3 × 2657. 7971 is classified as a deficient number based on the sum of its proper divisors. In computer science, 7971 is represented as 1111100100011 in binary and 1F23 in hexadecimal.

Roman Numeral
N/A (1-3999)
LatinClassic
Binary
1111100100011
Base 2
Hexadecimal
1F23
Base 16

Factor Analysis

4 Factors

Properties

ParityOdd
Perfect SquareNo
Perfect CubeNo
Digit Count4
Digit Sum24
Digital Root6
Sum of Factors10632
Aliquot Sum2661
ClassificationDeficient
Prime Factors2
SequencesComposite numbers, Deficient numbers
Prime Factorization

The prime factorization (3 × 2657) reveals 2 prime building blocks.

Canonical form
3 × 2657
32657
Divisibility Insights
  • Divisible by 2

    7971 ends in 1, so it is odd.

  • Divisible by 3

    The digit sum 24 is a multiple of 3.

  • Divisible by 4

    The last two digits 71 are not divisible by 4.

  • Divisible by 5

    7971 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

    7971 does not end in 0.

  • Divisible by 11

    The alternating digit sum 4 is not a multiple of 11.

Sequence Membership

Deficient classification and digit analytics place 7971 within several notable number theory sequences:

Composite numbersDeficient numbers
Advertisement

Deep dive

How 7971 breaks down

7971 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 2661, which stays below the number, offering a quick glimpse into its abundance profile.

Numeral conversions provide additional context: the binary form 1111100100011 supports bitwise reasoning, hexadecimal 1F23 aligns with computing notation, and the Roman numeral N/A (1-3999) keeps the encyclopedic tradition alive. These attributes make 7971 useful for math olympiad problems, puzzle design, and code challenges alike.

Context

Where 7971 shows up

Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (79667976) to tune search ranges, and educators feature 7971 in worksheets about factor trees. Its binary footprint of length 13 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 7971 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 7971

Is 7971 a prime number?

7971 is composite with 4 total factors and the prime factorization 3 × 2657.

What is the prime factorization of 7971?

It breaks down as 3 × 2657, multiplying the primes 3 × 2657.

How is 7971 represented in binary and hexadecimal?

7971 converts to 1111100100011 in binary and 1F23 in hexadecimal, which are helpful for computer science applications.

Is 7971 a perfect square, cube, or triangular number?

7971 is not a perfect square, is not a perfect cube, and is not triangular.

What are the digit sum and digital root of 7971?

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