The number 40708
40708 is a composite number with 6 divisors. Its prime factorisation is × 10177. Divisors (6): 1, 2, 4, 10177, 20354, 40708.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 40708: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
40708 is composite. Its prime factorisation is
- 3
The divisors add up to 71246; without 40708 itself that is 30538, so 40708 is deficient (30538 is less than 40708). Euler's totient φ(40708) = 20352 numbers up to 40708 share no factor with it.
- 4
The digits of 40708 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 36 steps to reach 1.
LaTeX source of the formulas on this page
\[ 40708 = 2^{2} \times 10177 \]40708 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 71246 |
| Euler totient φ(n) | 20352 |
| Square | 1657141264 |
| Cube | 67458906574912 |
| Square root | 201.762236 (= 2√10177) |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 36 |
| Scientific notation | 4.0708 × |
40708 in other forms
| Form | Value |
|---|---|
| In words | forty thousand seven hundred and eight |
| Binary (base 2) | 1001111100000100 |
| Octal (base 8) | 117404 |
| Hexadecimal (base 16) | 9F04 |
| Base 3 | 2001211201 |
| As time | 40708 seconds = 11 h 18 min 28 s |
Is 40708 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (40708 ÷ 2 = 20354) | 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 (40708 ÷ 4 = 10177) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | 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 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 40708 a prime number?
No. 40708 = × 10177, so it is divisible by 2.
What are the factors of 40708?
1, 2, 4, 10177, 20354, 40708.
What is 40708 in binary?
1001111100000100 (hexadecimal 9F04, octal 117404).
What is the square root of 40708?
About 201.7622, exactly 2√10177.
Is 40708 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 40708?
40708 is a happy number: repeatedly adding the squares of its digits reaches 1.