The number 24242
24242 is a palindrome: it reads 24242 backwards too. Its prime factorisation is 2 × 17 × 23 × 31. Divisors (16): 1, 2, 17, 23, 31, 34, 46, 62, 391, 527, 713, 782, 1054, 1426, 12121, 24242.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24242: a palindrome: it reads 24242 backwards too; a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
24242 is composite. Its prime factorisation is
- 3
The divisors add up to 41472; without 24242 itself that is 17230, so 24242 is deficient (17230 is less than 24242). Euler's totient φ(24242) = 10560 numbers up to 24242 share no factor with it.
- 4
The digits of 24242 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 144 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24242 = 2 \times 17 \times 23 \times 31 \]
24242 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 41472 |
| Euler totient φ(n) | 10560 |
| Square | 587674564 |
| Cube | 14246406780488 |
| Square root | 155.698426 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 144 |
| Scientific notation | 2.4242 × |
24242 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand two hundred and forty-two |
| Binary (base 2) | 101111010110010 |
| Octal (base 8) | 57262 |
| Hexadecimal (base 16) | 5EB2 |
| Base 3 | 1020020212 |
| As time | 24242 seconds = 6 h 44 min 2 s |
Is 24242 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (24242 ÷ 2 = 12121) | 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 | No (remainder 1) | 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 5) | 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 9) | 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 24242 a prime number?
No. 24242 = 2 × 17 × 23 × 31, so it is divisible by 2.
What are the factors of 24242?
1, 2, 17, 23, 31, 34, 46, 62, 391, 527, 713, 782, 1054, 1426, 12121, 24242.
What is 24242 in binary?
101111010110010 (hexadecimal 5EB2, octal 57262).
What is the square root of 24242?
About 155.6984.
Is 24242 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 24242?
24242 is a palindrome: it reads 24242 backwards too; a happy number: repeatedly adding the squares of its digits reaches 1.