The number 42474
42474 is a composite number with 8 divisors. Its prime factorisation is 2 × 3 × 7079. Divisors (8): 1, 2, 3, 6, 7079, 14158, 21237, 42474.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42474 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42474 is composite. Its prime factorisation is
- 3
The divisors add up to 84960; without 42474 itself that is 42486, so 42474 is abundant (42486 is more than 42474). Euler's totient φ(42474) = 14156 numbers up to 42474 share no factor with it.
- 4
The digits of 42474 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42474 = 2 \times 3 \times 7079 \]
42474 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 84960 |
| Euler totient φ(n) | 14156 |
| Square | 1804040676 |
| Cube | 76624823672424 |
| Square root | 206.092212 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 57 |
| Scientific notation | 4.2474 × |
42474 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand four hundred and seventy-four |
| Binary (base 2) | 1010010111101010 |
| Octal (base 8) | 122752 |
| Hexadecimal (base 16) | A5EA |
| Base 3 | 2011021010 |
| As time | 42474 seconds = 11 h 47 min 54 s |
Is 42474 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42474 ÷ 2 = 21237) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (42474 ÷ 3 = 14158) | 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 | Yes (42474 ÷ 6 = 7079) | 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 2) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | 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 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 42474 a prime number?
No. 42474 = 2 × 3 × 7079, so it is divisible by 2.
What are the factors of 42474?
1, 2, 3, 6, 7079, 14158, 21237, 42474.
What is 42474 in binary?
1010010111101010 (hexadecimal A5EA, octal 122752).
What is the square root of 42474?
About 206.0922.
Is 42474 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 42474?
It is a composite number with 8 divisors.