The number 40036
40036 is a composite number with 6 divisors. Its prime factorisation is × 10009. Divisors (6): 1, 2, 4, 10009, 20018, 40036.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
40036 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
40036 is composite. Its prime factorisation is
- 3
The divisors add up to 70070; without 40036 itself that is 30034, so 40036 is deficient (30034 is less than 40036). Euler's totient φ(40036) = 20016 numbers up to 40036 share no factor with it.
- 4
The digits of 40036 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 168 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40036 = 2^{2} \times 10009 \]40036 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 70070 |
| Euler totient φ(n) | 20016 |
| Square | 1602881296 |
| Cube | 64172955566656 |
| Square root | 200.089980 (= 2√10009) |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 168 |
| Scientific notation | 4.0036 × |
40036 in other forms
| Form | Value |
|---|---|
| In words | forty thousand and thirty-six |
| Binary (base 2) | 1001110001100100 |
| Octal (base 8) | 116144 |
| Hexadecimal (base 16) | 9C64 |
| Base 3 | 2000220211 |
| As time | 40036 seconds = 11 h 7 min 16 s |
Is 40036 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (40036 ÷ 2 = 20018) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | Yes (40036 ÷ 4 = 10009) | 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 4) | 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 4) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 6) | 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 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 40036 a prime number?
No. 40036 = × 10009, so it is divisible by 2.
What are the factors of 40036?
1, 2, 4, 10009, 20018, 40036.
What is 40036 in binary?
1001110001100100 (hexadecimal 9C64, octal 116144).
What is the square root of 40036?
About 200.0900, exactly 2√10009.
Is 40036 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 40036?
It is a composite number with 6 divisors.