The number 4427
4427 is a composite number with 4 divisors. Its prime factorisation is 19 × 233. Divisors (4): 1, 19, 233, 4427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4427: a semiprime: 19 × 233, the product of two primes.
- 2
4427 is composite. Its prime factorisation is
- 3
The divisors add up to 4680; without 4427 itself that is 253, so 4427 is deficient (253 is less than 4427). Euler's totient φ(4427) = 4176 numbers up to 4427 share no factor with it.
- 4
The digits of 4427 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4427 = 19 \times 233 \]
4427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 4680 |
| Euler totient φ(n) | 4176 |
| Square | 19598329 |
| Cube | 86761802483 |
| Square root | 66.535705 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 95 |
| Scientific notation | 4.427 × |
4427 in other forms
| Form | Value |
|---|---|
| In words | four thousand four hundred and twenty-seven |
| Binary (base 2) | 1000101001011 |
| Octal (base 8) | 10513 |
| Hexadecimal (base 16) | 114B |
| Base 3 | 20001222 |
| As time | 4427 seconds = 1 h 13 min 47 s |
Is 4427 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 | No (remainder 2) | 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 8) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 4427 a prime number?
No. 4427 = 19 × 233, so it is divisible by 19.
What are the factors of 4427?
1, 19, 233, 4427.
What is 4427 in binary?
1000101001011 (hexadecimal 114B, octal 10513).
What is the square root of 4427?
About 66.5357.
Is 4427 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 4427?
4427 is a semiprime: 19 × 233, the product of two primes.