The number 67042
67042 is a composite number with 4 divisors. Its prime factorisation is 2 × 33521. Divisors (4): 1, 2, 33521, 67042.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67042: a semiprime: 2 × 33521, the product of two primes.
- 2
67042 is composite. Its prime factorisation is
- 3
The divisors add up to 100566; without 67042 itself that is 33524, so 67042 is deficient (33524 is less than 67042). Euler's totient φ(67042) = 33520 numbers up to 67042 share no factor with it.
- 4
The digits of 67042 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 130 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67042 = 2 \times 33521 \]
67042 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 100566 |
| Euler totient φ(n) | 33520 |
| Square | 4494629764 |
| Cube | 301328968638088 |
| Square root | 258.924699 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 130 |
| Scientific notation | 6.7042 × |
67042 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand and forty-two |
| Binary (base 2) | 10000010111100010 |
| Octal (base 8) | 202742 |
| Hexadecimal (base 16) | 105E2 |
| Base 3 | 10101222001 |
| As time | 67042 seconds = 18 h 37 min 22 s |
Is 67042 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (67042 ÷ 2 = 33521) | 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 | 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 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 2) | 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 2) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 67042 a prime number?
No. 67042 = 2 × 33521, so it is divisible by 2.
What are the factors of 67042?
1, 2, 33521, 67042.
What is 67042 in binary?
10000010111100010 (hexadecimal 105E2, octal 202742).
What is the square root of 67042?
About 258.9247.
Is 67042 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 67042?
67042 is a semiprime: 2 × 33521, the product of two primes.