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Composite Number

1606

1606 is a even composite number that follows 1605 and precedes 1607. It is composed of 8 distinct factors: 1, 2, 11, 22, 73, 146, 803, 1606. Its prime factorization can be written as 2 × 11 × 73. 1606 is classified as a deficient number based on the sum of its proper divisors. In computer science, 1606 is represented as 11001000110 in binary and 646 in hexadecimal. Historically, it is written as MDCVI in Roman numerals.

Roman Numeral
MDCVI
LatinClassic
Binary
11001000110
Base 2
Hexadecimal
646
Base 16

Factor Analysis

8 Factors

Properties

ParityEven
Perfect SquareNo
Perfect CubeNo
Digit Count4
Digit Sum13
Digital Root4
Sum of Factors2664
Aliquot Sum1058
ClassificationDeficient
Prime Factors3
SequencesComposite numbers, Deficient numbers
Prime Factorization

The prime factorization (2 × 11 × 73) reveals 3 prime building blocks.

Canonical form
2 × 11 × 73
21173
Divisibility Insights
  • Divisible by 2

    1606 ends in 6, so it is even.

  • Divisible by 3

    The digit sum 13 is not a multiple of 3.

  • Divisible by 4

    The last two digits 06 are not divisible by 4.

  • Divisible by 5

    1606 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 13 is not a multiple of 9.

  • Divisible by 10

    1606 does not end in 0.

  • Divisible by 11

    The alternating digit sum -11 is a multiple of 11.

Sequence Membership

Deficient classification and digit analytics place 1606 within several notable number theory sequences:

Composite numbersDeficient numbers
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Deep dive

How 1606 breaks down

1606 carries 8 distinct factors and a digit signature of 13 (4 as the digital root). The deficient classification indicates that its proper divisors sum to 1058, which stays below the number, offering a quick glimpse into its abundance profile.

Numeral conversions provide additional context: the binary form 11001000110 supports bitwise reasoning, hexadecimal 646 aligns with computing notation, and the Roman numeral MDCVI keeps the encyclopedic tradition alive. These attributes make 1606 useful for math olympiad problems, puzzle design, and code challenges alike.

Context

Where 1606 shows up

Engineers lean on the divisibility profile when sizing circuits, mod designers use neighboring values (16011611) to tune search ranges, and educators feature 1606 in worksheets about factor trees. Its binary footprint of length 11 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 1606 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 1606

Is 1606 a prime number?

1606 is composite with 8 total factors and the prime factorization 2 × 11 × 73.

What is the prime factorization of 1606?

It breaks down as 2 × 11 × 73, multiplying the primes 2 × 11 × 73.

How is 1606 represented in binary and hexadecimal?

1606 converts to 11001000110 in binary and 646 in hexadecimal, which are helpful for computer science applications.

Is 1606 a perfect square, cube, or triangular number?

1606 is not a perfect square, is not a perfect cube, and is not triangular.

What are the digit sum and digital root of 1606?

The digits sum to 13, producing a digital root of 4. These tests power divisibility shortcuts for 3 and 9.