Number 1440 - properties and curiosities

1440 (number)

1440

Number 1440 properties

  • Harshad
  • 1440 is an even number.
  • 1440 is a Harshad number, which means it is divisible by the sum of its digits (1440 = 9, and 1440 is divisible by 9).

Prime factorization

Prime factorization of 1440: 2^5 × 3^2 × 5.

Divisors

Divisor count: 36

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440

Factors of 1440 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180.

Representations

In octal, 1440 is represented as 2640.

In binary, 1440 is represented as 10110100000.

In hex, 1440 is represented as 5A0.

Roman numeral: MCDXL

Curiosities

  • 1440 is divisible by the sum of its digits.

Quick answers

Is 1440 prime?
No, 1440 is not prime.

What are the factors of 1440?
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180

What is 1440 in binary?
10110100000