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The fascinating world of numbers

Number 1540 - properties and curiosities

1540 (number)

1540

Number 1540 properties

  • Harshad
  • Triangular
  • 1540 is an even number.
  • 1540 is triangular and equals T55.
  • 1540 is a Harshad number, which means it is divisible by the sum of its digits (1540 = 10, and 1540 is divisible by 10).

Prime factorization

Prime factorization of 1540: 2^2 × 5 × 7 × 11.

Divisors

Divisor count: 24

1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540

Factors of 1540 are: 1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540.

Representations

In octal, 1540 is represented as 3004.

In binary, 1540 is represented as 11000000100.

In hex, 1540 is represented as 604.

Roman numeral: MDXL

Curiosities

  • 1540 is divisible by the sum of its digits.

Quick answers

Is 1540 prime?
No, 1540 is not prime.

What are the factors of 1540?
1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540

What is 1540 in binary?
11000000100