The number 67142
67142 is a composite number with 8 divisors. Its prime factorisation is 2 × 59 × 569. Divisors (8): 1, 2, 59, 118, 569, 1138, 33571, 67142.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
67142 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
67142 is composite. Its prime factorisation is
- 3
The divisors add up to 102600; without 67142 itself that is 35458, so 67142 is deficient (35458 is less than 67142). Euler's totient φ(67142) = 32944 numbers up to 67142 share no factor with it.
- 4
The digits of 67142 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 130 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67142 = 2 \times 59 \times 569 \]
67142 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 102600 |
| Euler totient φ(n) | 32944 |
| Square | 4508048164 |
| Cube | 302679369827288 |
| Square root | 259.117734 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 130 |
| Scientific notation | 6.7142 × |
67142 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand one hundred and forty-two |
| Binary (base 2) | 10000011001000110 |
| Octal (base 8) | 203106 |
| Hexadecimal (base 16) | 10646 |
| Base 3 | 10102002202 |
| As time | 67142 seconds = 18 h 39 min 2 s |
Is 67142 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (67142 ÷ 2 = 33571) | 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 2) | 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 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 5) | 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 6) | 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 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 67142 a prime number?
No. 67142 = 2 × 59 × 569, so it is divisible by 2.
What are the factors of 67142?
1, 2, 59, 118, 569, 1138, 33571, 67142.
What is 67142 in binary?
10000011001000110 (hexadecimal 10646, octal 203106).
What is the square root of 67142?
About 259.1177.
Is 67142 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 67142?
It is a composite number with 8 divisors.