240 (number)
240 is a number. It comes after 239 and before 241.
| ||||
|---|---|---|---|---|
| Cardinal | two hundred and forty | |||
| Ordinal | 240th (two hundred and fortieth) | |||
| Factorization | 24· 3 · 5 | |||
| Roman numeral | CCXL | |||
| Binary | 111100002 | |||
| Ternary | 222203 | |||
| Quaternary | 33004 | |||
| Quinary | 14305 | |||
| Senary | 10406 | |||
| Octal | 3608 | |||
| Duodecimal | 18012 | |||
| Hexadecimal | F016 | |||
| Vigesimal | C020 | |||
| Base 36 | 6O36 | |||
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
