The number 40011
40011 is a composite number with 4 divisors. Its prime factorisation is 3 × 13337. Divisors (4): 1, 3, 13337, 40011.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 40011: a semiprime: 3 × 13337, the product of two primes.
- 2
40011 is composite. Its prime factorisation is
- 3
The divisors add up to 53352; without 40011 itself that is 13341, so 40011 is deficient (13341 is less than 40011). Euler's totient φ(40011) = 26672 numbers up to 40011 share no factor with it.
- 4
The digits of 40011 add up to 6, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 181 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40011 = 3 \times 13337 \]
40011 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 53352 |
| Euler totient φ(n) | 26672 |
| Square | 1600880121 |
| Cube | 64052814521331 |
| Square root | 200.027498 |
| Digit sum / digital root | 6 / 6 |
| Collatz steps to 1 | 181 |
| Scientific notation | 4.0011 × |
40011 in other forms
| Form | Value |
|---|---|
| In words | forty thousand and eleven |
| Binary (base 2) | 1001110001001011 |
| Octal (base 8) | 116113 |
| Hexadecimal (base 16) | 9C4B |
| Base 3 | 2000212220 |
| As time | 40011 seconds = 11 h 6 min 51 s |
Is 40011 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 (40011 ÷ 3 = 13337) | 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 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 4) | 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 40011 a prime number?
No. 40011 = 3 × 13337, so it is divisible by 3.
What are the factors of 40011?
1, 3, 13337, 40011.
What is 40011 in binary?
1001110001001011 (hexadecimal 9C4B, octal 116113).
What is the square root of 40011?
About 200.0275.
Is 40011 divisible by 3?
Yes. Its digits add up to 6, a multiple of 3.
What is special about the number 40011?
40011 is a semiprime: 3 × 13337, the product of two primes.