The number 67241
67241 is a composite number with 4 divisors. Its prime factorisation is 19 × 3539. Divisors (4): 1, 19, 3539, 67241.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 67241: a semiprime: 19 × 3539, the product of two primes.
- 2
67241 is composite. Its prime factorisation is
- 3
The divisors add up to 70800; without 67241 itself that is 3559, so 67241 is deficient (3559 is less than 67241). Euler's totient φ(67241) = 63684 numbers up to 67241 share no factor with it.
- 4
The digits of 67241 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 192 steps to reach 1.
LaTeX source of the formulas on this page
\[ 67241 = 19 \times 3539 \]
67241 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 70800 |
| Euler totient φ(n) | 63684 |
| Square | 4521352081 |
| Cube | 304020235278521 |
| Square root | 259.308696 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 192 |
| Scientific notation | 6.7241 × |
67241 in other forms
| Form | Value |
|---|---|
| In words | sixty-seven thousand two hundred and forty-one |
| Binary (base 2) | 10000011010101001 |
| Octal (base 8) | 203251 |
| Hexadecimal (base 16) | 106A9 |
| Base 3 | 10102020102 |
| As time | 67241 seconds = 18 h 40 min 41 s |
Is 67241 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 1) | 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 6) | 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 1) | 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 1) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 67241 a prime number?
No. 67241 = 19 × 3539, so it is divisible by 19.
What are the factors of 67241?
1, 19, 3539, 67241.
What is 67241 in binary?
10000011010101001 (hexadecimal 106A9, octal 203251).
What is the square root of 67241?
About 259.3087.
Is 67241 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 67241?
67241 is a semiprime: 19 × 3539, the product of two primes.