The number 4907
4907 is a composite number with 4 divisors. Its prime factorisation is 7 × 701. Divisors (4): 1, 7, 701, 4907.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 4907: a semiprime: 7 × 701, the product of two primes.
- 2
4907 is composite. Its prime factorisation is
- 3
The divisors add up to 5616; without 4907 itself that is 709, so 4907 is deficient (709 is less than 4907). Euler's totient φ(4907) = 4200 numbers up to 4907 share no factor with it.
- 4
The digits of 4907 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 134 steps to reach 1.
LaTeX source of the formulas on this page
\[ 4907 = 7 \times 701 \]
4907 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 5616 |
| Euler totient φ(n) | 4200 |
| Square | 24078649 |
| Cube | 118153930643 |
| Square root | 70.049982 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 134 |
| Scientific notation | 4.907 × |
4907 in other forms
| Form | Value |
|---|---|
| In words | four thousand nine hundred and seven |
| Binary (base 2) | 1001100101011 |
| Octal (base 8) | 11453 |
| Hexadecimal (base 16) | 132B |
| Base 3 | 20201202 |
| As time | 4907 seconds = 1 h 21 min 47 s |
Is 4907 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 | Yes (4907 ÷ 7 = 701) | 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | 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 4907 a prime number?
No. 4907 = 7 × 701, so it is divisible by 7.
What are the factors of 4907?
1, 7, 701, 4907.
What is 4907 in binary?
1001100101011 (hexadecimal 132B, octal 11453).
What is the square root of 4907?
About 70.0500.
Is 4907 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 4907?
4907 is a semiprime: 7 × 701, the product of two primes.