The number 42341
42341 is a composite number with 4 divisors. Its prime factorisation is 13 × 3257. Divisors (4): 1, 13, 3257, 42341.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42341: a semiprime: 13 × 3257, the product of two primes.
- 2
42341 is composite. Its prime factorisation is
- 3
The divisors add up to 45612; without 42341 itself that is 3271, so 42341 is deficient (3271 is less than 42341). Euler's totient φ(42341) = 39072 numbers up to 42341 share no factor with it.
- 4
The digits of 42341 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 150 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42341 = 13 \times 3257 \]
42341 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 45612 |
| Euler totient φ(n) | 39072 |
| Square | 1792760281 |
| Cube | 75907263057821 |
| Square root | 205.769288 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 150 |
| Scientific notation | 4.2341 × |
42341 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand three hundred and forty-one |
| Binary (base 2) | 1010010101100101 |
| Octal (base 8) | 122545 |
| Hexadecimal (base 16) | A565 |
| Base 3 | 2011002012 |
| As time | 42341 seconds = 11 h 45 min 41 s |
Is 42341 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 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 5) | 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 2) | 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 42341 a prime number?
No. 42341 = 13 × 3257, so it is divisible by 13.
What are the factors of 42341?
1, 13, 3257, 42341.
What is 42341 in binary?
1010010101100101 (hexadecimal A565, octal 122545).
What is the square root of 42341?
About 205.7693.
Is 42341 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 42341?
42341 is a semiprime: 13 × 3257, the product of two primes.