The number 24449
24449 is a composite number with 4 divisors. Its prime factorisation is 23 × 1063. Divisors (4): 1, 23, 1063, 24449.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24449: a happy number: repeatedly adding the squares of its digits reaches 1; a Harshad number: divisible by its digit sum 23; a semiprime: 23 × 1063, the product of two primes.
- 2
24449 is composite. Its prime factorisation is
- 3
The divisors add up to 25536; without 24449 itself that is 1087, so 24449 is deficient (1087 is less than 24449). Euler's totient φ(24449) = 23364 numbers up to 24449 share no factor with it.
- 4
The digits of 24449 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 38 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24449 = 23 \times 1063 \]
24449 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 25536 |
| Euler totient φ(n) | 23364 |
| Square | 597753601 |
| Cube | 14614477790849 |
| Square root | 156.361760 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 38 |
| Scientific notation | 2.4449 × |
24449 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand four hundred and forty-nine |
| Binary (base 2) | 101111110000001 |
| Octal (base 8) | 57601 |
| Hexadecimal (base 16) | 5F81 |
| Base 3 | 1020112112 |
| As time | 24449 seconds = 6 h 47 min 29 s |
Is 24449 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 1) | 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 | No (remainder 5) | 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 1) | 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 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 24449 a prime number?
No. 24449 = 23 × 1063, so it is divisible by 23.
What are the factors of 24449?
1, 23, 1063, 24449.
What is 24449 in binary?
101111110000001 (hexadecimal 5F81, octal 57601).
What is the square root of 24449?
About 156.3618.
Is 24449 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 24449?
24449 is a happy number: repeatedly adding the squares of its digits reaches 1; a Harshad number: divisible by its digit sum 23; a semiprime: 23 × 1063, the product of two primes.