The number 42074
42074 is a composite number with 8 divisors. Its prime factorisation is 2 × 109 × 193. Divisors (8): 1, 2, 109, 193, 218, 386, 21037, 42074.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42074 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42074 is composite. Its prime factorisation is
- 3
The divisors add up to 64020; without 42074 itself that is 21946, so 42074 is deficient (21946 is less than 42074). Euler's totient φ(42074) = 20736 numbers up to 42074 share no factor with it.
- 4
The digits of 42074 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 106 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42074 = 2 \times 109 \times 193 \]
42074 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 64020 |
| Euler totient φ(n) | 20736 |
| Square | 1770221476 |
| Cube | 74480298381224 |
| Square root | 205.119477 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 106 |
| Scientific notation | 4.2074 × |
42074 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand and seventy-four |
| Binary (base 2) | 1010010001011010 |
| Octal (base 8) | 122132 |
| Hexadecimal (base 16) | A45A |
| Base 3 | 2010201022 |
| As time | 42074 seconds = 11 h 41 min 14 s |
Is 42074 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42074 ÷ 2 = 21037) | 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 4) | 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 4) | 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 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 10) | 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 42074 a prime number?
No. 42074 = 2 × 109 × 193, so it is divisible by 2.
What are the factors of 42074?
1, 2, 109, 193, 218, 386, 21037, 42074.
What is 42074 in binary?
1010010001011010 (hexadecimal A45A, octal 122132).
What is the square root of 42074?
About 205.1195.
Is 42074 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 42074?
It is a composite number with 8 divisors.