The number 42707
42707 is a composite number with 4 divisors. Its prime factorisation is 7 × 6101. Divisors (4): 1, 7, 6101, 42707.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42707: a semiprime: 7 × 6101, the product of two primes.
- 2
42707 is composite. Its prime factorisation is
- 3
The divisors add up to 48816; without 42707 itself that is 6109, so 42707 is deficient (6109 is less than 42707). Euler's totient φ(42707) = 36600 numbers up to 42707 share no factor with it.
- 4
The digits of 42707 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 49 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42707 = 7 \times 6101 \]
42707 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 48816 |
| Euler totient φ(n) | 36600 |
| Square | 1823887849 |
| Cube | 77892778367243 |
| Square root | 206.656720 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 49 |
| Scientific notation | 4.2707 × |
42707 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand seven hundred and seven |
| Binary (base 2) | 1010011011010011 |
| Octal (base 8) | 123323 |
| Hexadecimal (base 16) | A6D3 |
| Base 3 | 2011120202 |
| As time | 42707 seconds = 11 h 51 min 47 s |
Is 42707 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 (42707 ÷ 7 = 6101) | 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 5) | 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 42707 a prime number?
No. 42707 = 7 × 6101, so it is divisible by 7.
What are the factors of 42707?
1, 7, 6101, 42707.
What is 42707 in binary?
1010011011010011 (hexadecimal A6D3, octal 123323).
What is the square root of 42707?
About 206.6567.
Is 42707 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 42707?
42707 is a semiprime: 7 × 6101, the product of two primes.