The number 13471
13471 is a composite number with 4 divisors. Its prime factorisation is 19 × 709. Divisors (4): 1, 19, 709, 13471.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 13471: a semiprime: 19 × 709, the product of two primes.
- 2
13471 is composite. Its prime factorisation is
- 3
The divisors add up to 14200; without 13471 itself that is 729, so 13471 is deficient (729 is less than 13471). Euler's totient φ(13471) = 12744 numbers up to 13471 share no factor with it.
- 4
The digits of 13471 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 89 steps to reach 1.
LaTeX source of the formulas on this page
\[ 13471 = 19 \times 709 \]
13471 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 14200 |
| Euler totient φ(n) | 12744 |
| Square | 181467841 |
| Cube | 2444553286111 |
| Square root | 116.064637 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 89 |
| Scientific notation | 1.3471 × |
13471 in other forms
| Form | Value |
|---|---|
| In words | thirteen thousand four hundred and seventy-one |
| Binary (base 2) | 11010010011111 |
| Octal (base 8) | 32237 |
| Hexadecimal (base 16) | 349F |
| Base 3 | 200110221 |
| As time | 13471 seconds = 3 h 44 min 31 s |
Is 13471 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 1) | 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 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 7) | 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 1) | 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 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 13471 a prime number?
No. 13471 = 19 × 709, so it is divisible by 19.
What are the factors of 13471?
1, 19, 709, 13471.
What is 13471 in binary?
11010010011111 (hexadecimal 349F, octal 32237).
What is the square root of 13471?
About 116.0646.
Is 13471 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 13471?
13471 is a semiprime: 19 × 709, the product of two primes.