The number 24713
24713 is a composite number with 4 divisors. Its prime factorisation is 13 × 1901. Divisors (4): 1, 13, 1901, 24713.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 24713: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 13 × 1901, the product of two primes.
- 2
24713 is composite. Its prime factorisation is
- 3
The divisors add up to 26628; without 24713 itself that is 1915, so 24713 is deficient (1915 is less than 24713). Euler's totient φ(24713) = 22800 numbers up to 24713 share no factor with it.
- 4
The digits of 24713 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 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 24713 = 13 \times 1901 \]
24713 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 26628 |
| Euler totient φ(n) | 22800 |
| Square | 610732369 |
| Cube | 15093029035097 |
| Square root | 157.203690 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 95 |
| Scientific notation | 2.4713 × |
24713 in other forms
| Form | Value |
|---|---|
| In words | twenty-four thousand seven hundred and thirteen |
| Binary (base 2) | 110000010001001 |
| Octal (base 8) | 60211 |
| Hexadecimal (base 16) | 6089 |
| Base 3 | 1020220022 |
| As time | 24713 seconds = 6 h 51 min 53 s |
Is 24713 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 3) | 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 3) | 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 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 3) | 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 24713 a prime number?
No. 24713 = 13 × 1901, so it is divisible by 13.
What are the factors of 24713?
1, 13, 1901, 24713.
What is 24713 in binary?
110000010001001 (hexadecimal 6089, octal 60211).
What is the square root of 24713?
About 157.2037.
Is 24713 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 24713?
24713 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 13 × 1901, the product of two primes.