The number 4331
4331 is a composite number with 4 divisors. Its prime factorisation is 61 × 71. Divisors (4): 1, 61, 71, 4331.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4331: a semiprime: 61 × 71, the product of two primes.
- 2
4331 is composite. Its prime factorisation is
- 3
The divisors add up to 4464; without 4331 itself that is 133, so 4331 is deficient (133 is less than 4331). Euler's totient φ(4331) = 4200 numbers up to 4331 share no factor with it.
- 4
The digits of 4331 add up to 11, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 126 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4331 = 61 \times 71 \]
4331 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 4464 |
| Euler totient φ(n) | 4200 |
| Square | 18757561 |
| Cube | 81238996691 |
| Square root | 65.810334 |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 126 |
| Scientific notation | 4.331 × |
4331 in other forms
| Form | Value |
|---|---|
| In words | four thousand three hundred and thirty-one |
| Binary (base 2) | 1000011101011 |
| Octal (base 8) | 10353 |
| Hexadecimal (base 16) | 10EB |
| Base 3 | 12221102 |
| As time | 4331 seconds = 1 h 12 min 11 s |
Is 4331 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 1) | 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 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 4331 a prime number?
No. 4331 = 61 × 71, so it is divisible by 61.
What are the factors of 4331?
1, 61, 71, 4331.
What is 4331 in binary?
1000011101011 (hexadecimal 10EB, octal 10353).
What is the square root of 4331?
About 65.8103.
Is 4331 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 4331?
4331 is a semiprime: 61 × 71, the product of two primes.