Number 420 - properties and curiosities

420 (number)

420

Number 420 properties

  • Harshad
  • 420 is an even number.
  • 420 is a Harshad number, which means it is divisible by the sum of its digits (420 = 6, and 420 is divisible by 6).

Prime factorization

Prime factorization of 420: 2^2 × 3 × 5 × 7.

Divisors

Divisor count: 24

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Factors of 420 are: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420.

Representations

In octal, 420 is represented as 644.

In binary, 420 is represented as 110100100.

In hex, 420 is represented as 1A4.

Roman numeral: CDXX

Curiosities

  • 420 is divisible by the sum of its digits.

Quick answers

Is 420 prime?
No, 420 is not prime.

What are the factors of 420?
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

What is 420 in binary?
110100100