The number 43442
43442 is a composite number with 16 divisors. Its prime factorisation is 2 × 7 × 29 × 107. Divisors (16): 1, 2, 7, 14, 29, 58, 107, 203, 214, 406, 749, 1498, 3103, 6206, 21721, 43442.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
43442 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
43442 is composite. Its prime factorisation is
- 3
The divisors add up to 77760; without 43442 itself that is 34318, so 43442 is deficient (34318 is less than 43442). Euler's totient φ(43442) = 17808 numbers up to 43442 share no factor with it.
- 4
The digits of 43442 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 163 steps to reach 1.
LaTeX source of the formulas on this page
\[ 43442 = 2 \times 7 \times 29 \times 107 \]
43442 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 77760 |
| Euler totient φ(n) | 17808 |
| Square | 1887207364 |
| Cube | 81984062306888 |
| Square root | 208.427445 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 163 |
| Scientific notation | 4.3442 × |
43442 in other forms
| Form | Value |
|---|---|
| In words | forty-three thousand four hundred and forty-two |
| Binary (base 2) | 1010100110110010 |
| Octal (base 8) | 124662 |
| Hexadecimal (base 16) | A9B2 |
| Base 3 | 2012120222 |
| As time | 43442 seconds = 12 h 4 min 2 s |
Is 43442 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (43442 ÷ 2 = 21721) | 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 2) | 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 | Yes (43442 ÷ 7 = 6206) | 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 2) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 43442 a prime number?
No. 43442 = 2 × 7 × 29 × 107, so it is divisible by 2.
What are the factors of 43442?
1, 2, 7, 14, 29, 58, 107, 203, 214, 406, 749, 1498, 3103, 6206, 21721, 43442.
What is 43442 in binary?
1010100110110010 (hexadecimal A9B2, octal 124662).
What is the square root of 43442?
About 208.4274.
Is 43442 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 43442?
It is a composite number with 16 divisors.