The number 27473
27473 is a composite number with 4 divisors. Its prime factorisation is 83 × 331. Divisors (4): 1, 83, 331, 27473.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 27473: a semiprime: 83 × 331, the product of two primes.
- 2
27473 is composite. Its prime factorisation is
- 3
The divisors add up to 27888; without 27473 itself that is 415, so 27473 is deficient (415 is less than 27473). Euler's totient φ(27473) = 27060 numbers up to 27473 share no factor with it.
- 4
The digits of 27473 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 95 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27473 = 83 \times 331 \]
27473 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 27888 |
| Euler totient φ(n) | 27060 |
| Square | 754765729 |
| Cube | 20735678872817 |
| Square root | 165.749811 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 95 |
| Scientific notation | 2.7473 × |
27473 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand four hundred and seventy-three |
| Binary (base 2) | 110101101010001 |
| Octal (base 8) | 65521 |
| Hexadecimal (base 16) | 6B51 |
| Base 3 | 1101200112 |
| As time | 27473 seconds = 7 h 37 min 53 s |
Is 27473 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 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 3) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | 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 27473 a prime number?
No. 27473 = 83 × 331, so it is divisible by 83.
What are the factors of 27473?
1, 83, 331, 27473.
What is 27473 in binary?
110101101010001 (hexadecimal 6B51, octal 65521).
What is the square root of 27473?
About 165.7498.
Is 27473 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 27473?
27473 is a semiprime: 83 × 331, the product of two primes.