The number 23713
23713 is a composite number with 4 divisors. Its prime factorisation is 23 × 1031. Divisors (4): 1, 23, 1031, 23713.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 23713: a semiprime: 23 × 1031, the product of two primes.
- 2
23713 is composite. Its prime factorisation is
- 3
The divisors add up to 24768; without 23713 itself that is 1055, so 23713 is deficient (1055 is less than 23713). Euler's totient φ(23713) = 22660 numbers up to 23713 share no factor with it.
- 4
The digits of 23713 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 175 steps to reach 1.
LaTeX source of the formulas on this page
\[ 23713 = 23 \times 1031 \]
23713 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 24768 |
| Euler totient φ(n) | 22660 |
| Square | 562306369 |
| Cube | 13333970928097 |
| Square root | 153.990259 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 175 |
| Scientific notation | 2.3713 × |
23713 in other forms
| Form | Value |
|---|---|
| In words | twenty-three thousand seven hundred and thirteen |
| Binary (base 2) | 101110010100001 |
| Octal (base 8) | 56241 |
| Hexadecimal (base 16) | 5CA1 |
| Base 3 | 1012112021 |
| As time | 23713 seconds = 6 h 35 min 13 s |
Is 23713 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 1) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 7) | 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 8) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 23713 a prime number?
No. 23713 = 23 × 1031, so it is divisible by 23.
What are the factors of 23713?
1, 23, 1031, 23713.
What is 23713 in binary?
101110010100001 (hexadecimal 5CA1, octal 56241).
What is the square root of 23713?
About 153.9903.
Is 23713 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 23713?
23713 is a semiprime: 23 × 1031, the product of two primes.