240 (number)

240 is a number. It comes after 239 and before 241.

In mathematics

• 240 is an even number.
• It is a composite number, meaning it has more than two factors.
• The prime factorization of 240 is: 240 = 2⁴ × 3 × 5 (which means 2 × 2 × 2 × 2 × 3 × 5)
• The digits of 240 add up to 6 (2 + 4 + 0 = 6).
• 240 is a highly composite number, which means it has more divisors than any smaller positive integer.
• It is also a harshad number because 240 is divisible by the sum of its digits (6).
• It is the smallest number that can be expressed as a sum of consecutive primes in three different ways.

In other areas

• 240 volts is a common voltage for electrical power in many countries.

Fun fact

• 240 has 20 divisors, which is more than many numbers smaller than it.
• 240 is the sum of four consecutive prime numbers: 53 + 59 + 61 + 67 = 240

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