The number 40331
40331 is a composite number with 4 divisors. Its prime factorisation is 31 × 1301. Divisors (4): 1, 31, 1301, 40331.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 40331: a semiprime: 31 × 1301, the product of two primes.
- 2
40331 is composite. Its prime factorisation is
- 3
The divisors add up to 41664; without 40331 itself that is 1333, so 40331 is deficient (1333 is less than 40331). Euler's totient φ(40331) = 39000 numbers up to 40331 share no factor with it.
- 4
The digits of 40331 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 88 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40331 = 31 \times 1301 \]
40331 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 41664 |
| Euler totient φ(n) | 39000 |
| Square | 1626589561 |
| Cube | 65601983584691 |
| Square root | 200.825795 |
| Digit sum / digital root | 11 / 2 |
| Collatz steps to 1 | 88 |
| Scientific notation | 4.0331 × |
40331 in other forms
| Form | Value |
|---|---|
| In words | forty thousand three hundred and thirty-one |
| Binary (base 2) | 1001110110001011 |
| Octal (base 8) | 116613 |
| Hexadecimal (base 16) | 9D8B |
| Base 3 | 2001022202 |
| As time | 40331 seconds = 11 h 12 min 11 s |
Is 40331 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 4) | 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 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 40331 a prime number?
No. 40331 = 31 × 1301, so it is divisible by 31.
What are the factors of 40331?
1, 31, 1301, 40331.
What is 40331 in binary?
1001110110001011 (hexadecimal 9D8B, octal 116613).
What is the square root of 40331?
About 200.8258.
Is 40331 divisible by 3?
No. Its digits add up to 11, which is not a multiple of 3.
What is special about the number 40331?
40331 is a semiprime: 31 × 1301, the product of two primes.