Number 1681 - properties and curiosities

1681 (number)

1681

Number 1681 properties

  • Perfect square
  • 1681 is an odd number.
  • 1681 is a perfect square (41 × 41).

Prime factorization

Prime factorization of 1681: 41^2.

Divisors

Divisor count: 3

1, 41, 1681

Factors of 1681 are: 1, 41, 1681.

Representations

In octal, 1681 is represented as 3221.

In binary, 1681 is represented as 11010010001.

In hex, 1681 is represented as 691.

Roman numeral: MDCLXXXI

Curiosities

  • 1681 is a perfect square, so it forms a square grid with equal side lengths.

Quick answers

Is 1681 prime?
No, 1681 is not prime.

What are the factors of 1681?
1, 41, 1681

What is 1681 in binary?
11010010001