The number 71373
71373 is a composite number with 8 divisors. Its prime factorisation is 3 × 37 × 643. Divisors (8): 1, 3, 37, 111, 643, 1929, 23791, 71373.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
71373 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
71373 is composite. Its prime factorisation is
- 3
The divisors add up to 97888; without 71373 itself that is 26515, so 71373 is deficient (26515 is less than 71373). Euler's totient φ(71373) = 46224 numbers up to 71373 share no factor with it.
- 4
The digits of 71373 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 143 steps to reach 1.
LaTeX source of the formulas on this page
\[ 71373 = 3 \times 37 \times 643 \]
71373 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 97888 |
| Euler totient φ(n) | 46224 |
| Square | 5094105129 |
| Cube | 363581565372117 |
| Square root | 267.157257 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 143 |
| Scientific notation | 7.1373 × |
71373 in other forms
| Form | Value |
|---|---|
| In words | seventy-one thousand three hundred and seventy-three |
| Binary (base 2) | 10001011011001101 |
| Octal (base 8) | 213315 |
| Hexadecimal (base 16) | 116CD |
| Base 3 | 10121220110 |
| As time | 71373 seconds = 19 h 49 min 33 s |
Is 71373 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 | Yes (71373 ÷ 3 = 23791) | 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 3) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | 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 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 71373 a prime number?
No. 71373 = 3 × 37 × 643, so it is divisible by 3.
What are the factors of 71373?
1, 3, 37, 111, 643, 1929, 23791, 71373.
What is 71373 in binary?
10001011011001101 (hexadecimal 116CD, octal 213315).
What is the square root of 71373?
About 267.1573.
Is 71373 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 71373?
It is a composite number with 8 divisors.