The number 73231
73231 is a composite number with 4 divisors. Its prime factorisation is 67 × 1093. Divisors (4): 1, 67, 1093, 73231.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 73231: a semiprime: 67 × 1093, the product of two primes.
- 2
73231 is composite. Its prime factorisation is
- 3
The divisors add up to 74392; without 73231 itself that is 1161, so 73231 is deficient (1161 is less than 73231). Euler's totient φ(73231) = 72072 numbers up to 73231 share no factor with it.
- 4
The digits of 73231 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 63 steps to reach 1.
LaTeX source of the formulas on this page
\[ 73231 = 67 \times 1093 \]
73231 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 74392 |
| Euler totient φ(n) | 72072 |
| Square | 5362779361 |
| Cube | 392721695385391 |
| Square root | 270.612269 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 63 |
| Scientific notation | 7.3231 × |
73231 in other forms
| Form | Value |
|---|---|
| In words | seventy-three thousand two hundred and thirty-one |
| Binary (base 2) | 10001111000001111 |
| Octal (base 8) | 217017 |
| Hexadecimal (base 16) | 11E0F |
| Base 3 | 10201110021 |
| As time | 73231 seconds = 20 h 20 min 31 s |
Is 73231 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 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 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 4) | 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 73231 a prime number?
No. 73231 = 67 × 1093, so it is divisible by 67.
What are the factors of 73231?
1, 67, 1093, 73231.
What is 73231 in binary?
10001111000001111 (hexadecimal 11E0F, octal 217017).
What is the square root of 73231?
About 270.6123.
Is 73231 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 73231?
73231 is a semiprime: 67 × 1093, the product of two primes.