The number 39707
39707 is a composite number with 4 divisors. Its prime factorisation is 59 × 673. Divisors (4): 1, 59, 673, 39707.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 39707: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 59 × 673, the product of two primes.
- 2
39707 is composite. Its prime factorisation is
- 3
The divisors add up to 40440; without 39707 itself that is 733, so 39707 is deficient (733 is less than 39707). Euler's totient φ(39707) = 38976 numbers up to 39707 share no factor with it.
- 4
The digits of 39707 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 274 steps to reach 1.
LaTeX source of the formulas on this page
\[ 39707 = 59 \times 673 \]
39707 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 40440 |
| Euler totient φ(n) | 38976 |
| Square | 1576645849 |
| Cube | 62603876726243 |
| Square root | 199.266154 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 274 |
| Scientific notation | 3.9707 × |
39707 in other forms
| Form | Value |
|---|---|
| In words | thirty-nine thousand seven hundred and seven |
| Binary (base 2) | 1001101100011011 |
| Octal (base 8) | 115433 |
| Hexadecimal (base 16) | 9B1B |
| Base 3 | 2000110122 |
| As time | 39707 seconds = 11 h 1 min 47 s |
Is 39707 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 2) | 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 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 39707 a prime number?
No. 39707 = 59 × 673, so it is divisible by 59.
What are the factors of 39707?
1, 59, 673, 39707.
What is 39707 in binary?
1001101100011011 (hexadecimal 9B1B, octal 115433).
What is the square root of 39707?
About 199.2662.
Is 39707 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 39707?
39707 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 59 × 673, the product of two primes.