The number 73427
73427 is a composite number with 4 divisors. Its prime factorisation is 101 × 727. Divisors (4): 1, 101, 727, 73427.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 73427: a semiprime: 101 × 727, the product of two primes.
- 2
73427 is composite. Its prime factorisation is
- 3
The divisors add up to 74256; without 73427 itself that is 829, so 73427 is deficient (829 is less than 73427). Euler's totient φ(73427) = 72600 numbers up to 73427 share no factor with it.
- 4
The digits of 73427 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 156 steps to reach 1.
LaTeX source of the formulas on this page
\[ 73427 = 101 \times 727 \]
73427 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 74256 |
| Euler totient φ(n) | 72600 |
| Square | 5391524329 |
| Cube | 395883456905483 |
| Square root | 270.974169 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 156 |
| Scientific notation | 7.3427 × |
73427 in other forms
| Form | Value |
|---|---|
| In words | seventy-three thousand four hundred and twenty-seven |
| Binary (base 2) | 10001111011010011 |
| Octal (base 8) | 217323 |
| Hexadecimal (base 16) | 11ED3 |
| Base 3 | 10201201112 |
| As time | 73427 seconds = 20 h 23 min 47 s |
Is 73427 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | 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 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 3) | 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 7) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 73427 a prime number?
No. 73427 = 101 × 727, so it is divisible by 101.
What are the factors of 73427?
1, 101, 727, 73427.
What is 73427 in binary?
10001111011010011 (hexadecimal 11ED3, octal 217323).
What is the square root of 73427?
About 270.9742.
Is 73427 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 73427?
73427 is a semiprime: 101 × 727, the product of two primes.