The number 2427
2427 is a composite number with 4 divisors. Its prime factorisation is 3 × 809. Divisors (4): 1, 3, 809, 2427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 2427: a semiprime: 3 × 809, the product of two primes.
- 2
2427 is composite. Its prime factorisation is
- 3
The divisors add up to 3240; without 2427 itself that is 813, so 2427 is deficient (813 is less than 2427). Euler's totient φ(2427) = 1616 numbers up to 2427 share no factor with it.
- 4
The digits of 2427 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 120 steps to reach 1.
LaTeX source of the formulas on this page
\[ 2427 = 3 \times 809 \]
2427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 3240 |
| Euler totient φ(n) | 1616 |
| Square | 5890329 |
| Cube | 14295828483 |
| Square root | 49.264592 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 120 |
| Scientific notation | 2.427 × |
2427 in other forms
| Form | Value |
|---|---|
| In words | two thousand four hundred and twenty-seven |
| Roman numerals | MMCDXXVII |
| Binary (base 2) | 100101111011 |
| Octal (base 8) | 4573 |
| Hexadecimal (base 16) | 97B |
| Base 3 | 10022220 |
| As time | 2427 seconds = 40 min 27 s |
Is 2427 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (2427 ÷ 3 = 809) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | A number is divisible by 7 if double the last digit and subtract it from the rest: the result is a multiple of 7. |
| 8 | No (remainder 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 2427 a prime number?
No. 2427 = 3 × 809, so it is divisible by 3.
What are the factors of 2427?
1, 3, 809, 2427.
What is 2427 in binary?
100101111011 (hexadecimal 97B, octal 4573).
What is the square root of 2427?
About 49.2646.
What is 2427 in Roman numerals?
MMCDXXVII.
Is 2427 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 2427?
2427 is a semiprime: 3 × 809, the product of two primes.