The number 42446
42446 is a composite number with 8 divisors. Its prime factorisation is 2 × 19 × 1117. Divisors (8): 1, 2, 19, 38, 1117, 2234, 21223, 42446.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42446 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42446 is composite. Its prime factorisation is
- 3
The divisors add up to 67080; without 42446 itself that is 24634, so 42446 is deficient (24634 is less than 42446). Euler's totient φ(42446) = 20088 numbers up to 42446 share no factor with it.
- 4
The digits of 42446 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 150 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42446 = 2 \times 19 \times 1117 \]
42446 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 67080 |
| Euler totient φ(n) | 20088 |
| Square | 1801662916 |
| Cube | 76473384132536 |
| Square root | 206.024270 |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 150 |
| Scientific notation | 4.2446 × |
42446 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand four hundred and forty-six |
| Binary (base 2) | 1010010111001110 |
| Octal (base 8) | 122716 |
| Hexadecimal (base 16) | A5CE |
| Base 3 | 2011020002 |
| As time | 42446 seconds = 11 h 47 min 26 s |
Is 42446 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42446 ÷ 2 = 21223) | 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 1) | 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 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 6) | 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 6) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 42446 a prime number?
No. 42446 = 2 × 19 × 1117, so it is divisible by 2.
What are the factors of 42446?
1, 2, 19, 38, 1117, 2234, 21223, 42446.
What is 42446 in binary?
1010010111001110 (hexadecimal A5CE, octal 122716).
What is the square root of 42446?
About 206.0243.
Is 42446 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 42446?
It is a composite number with 8 divisors.