The number 24442
24442 is a palindrome: it reads 24442 backwards too. Its prime factorisation is 2 × × 101. Divisors (12): 1, 2, 11, 22, 101, 121, 202, 242, 1111, 2222, 12221, 24442.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24442: a palindrome: it reads 24442 backwards too.
- 2
24442 is composite. Its prime factorisation is
- 3
The divisors add up to 40698; without 24442 itself that is 16256, so 24442 is deficient (16256 is less than 24442). Euler's totient φ(24442) = 11000 numbers up to 24442 share no factor with it.
- 4
The digits of 24442 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24442 = 2 \times 11^{2} \times 101 \]24442 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 40698 |
| Euler totient φ(n) | 11000 |
| Square | 597411364 |
| Cube | 14601928558888 |
| Square root | 156.339374 (= 11√202) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 95 |
| Scientific notation | 2.4442 × |
24442 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand four hundred and forty-two |
| Binary (base 2) | 101111101111010 |
| Octal (base 8) | 57572 |
| Hexadecimal (base 16) | 5F7A |
| Base 3 | 1020112021 |
| As time | 24442 seconds = 6 h 47 min 22 s |
Is 24442 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (24442 ÷ 2 = 12221) | 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 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 4) | 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 7) | 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 | Yes (24442 ÷ 11 = 2222) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24442 a prime number?
No. 24442 = 2 × × 101, so it is divisible by 2.
What are the factors of 24442?
1, 2, 11, 22, 101, 121, 202, 242, 1111, 2222, 12221, 24442.
What is 24442 in binary?
101111101111010 (hexadecimal 5F7A, octal 57572).
What is the square root of 24442?
About 156.3394, exactly 11√202.
Is 24442 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 24442?
24442 is a palindrome: it reads 24442 backwards too.