The number 42469
42469 is a composite number with 4 divisors. Its prime factorisation is 7 × 6067. Divisors (4): 1, 7, 6067, 42469.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 42469: a semiprime: 7 × 6067, the product of two primes.
- 2
42469 is composite. Its prime factorisation is
- 3
The divisors add up to 48544; without 42469 itself that is 6075, so 42469 is deficient (6075 is less than 42469). Euler's totient φ(42469) = 36396 numbers up to 42469 share no factor with it.
- 4
The digits of 42469 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 256 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42469 = 7 \times 6067 \]
42469 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 48544 |
| Euler totient φ(n) | 36396 |
| Square | 1803615961 |
| Cube | 76597766247709 |
| Square root | 206.080082 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 256 |
| Scientific notation | 4.2469 × |
42469 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand four hundred and sixty-nine |
| Binary (base 2) | 1010010111100101 |
| Octal (base 8) | 122745 |
| Hexadecimal (base 16) | A5E5 |
| Base 3 | 2011020221 |
| As time | 42469 seconds = 11 h 47 min 49 s |
Is 42469 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 1) | 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 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (42469 ÷ 7 = 6067) | 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 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42469 a prime number?
No. 42469 = 7 × 6067, so it is divisible by 7.
What are the factors of 42469?
1, 7, 6067, 42469.
What is 42469 in binary?
1010010111100101 (hexadecimal A5E5, octal 122745).
What is the square root of 42469?
About 206.0801.
Is 42469 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 42469?
42469 is a semiprime: 7 × 6067, the product of two primes.