The number 72327
72327 is a palindrome: it reads 72327 backwards too. Its prime factorisation is 3 × 24109. Divisors (4): 1, 3, 24109, 72327.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 72327: a palindrome: it reads 72327 backwards too; a semiprime: 3 × 24109, the product of two primes.
- 2
72327 is composite. Its prime factorisation is
- 3
The divisors add up to 96440; without 72327 itself that is 24113, so 72327 is deficient (24113 is less than 72327). Euler's totient φ(72327) = 48216 numbers up to 72327 share no factor with it.
- 4
The digits of 72327 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 94 steps to reach 1.
LaTeX source of the formulas on this page
\[ 72327 = 3 \times 24109 \]
72327 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 96440 |
| Euler totient φ(n) | 48216 |
| Square | 5231194929 |
| Cube | 378356635629783 |
| Square root | 268.936796 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 94 |
| Scientific notation | 7.2327 × |
72327 in other forms
| Form | Value |
|---|---|
| In words | seventy-two thousand three hundred and twenty-seven |
| Binary (base 2) | 10001101010000111 |
| Octal (base 8) | 215207 |
| Hexadecimal (base 16) | 11A87 |
| Base 3 | 10200012210 |
| As time | 72327 seconds = 20 h 5 min 27 s |
Is 72327 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 (72327 ÷ 3 = 24109) | 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 3) | 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 3) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 72327 a prime number?
No. 72327 = 3 × 24109, so it is divisible by 3.
What are the factors of 72327?
1, 3, 24109, 72327.
What is 72327 in binary?
10001101010000111 (hexadecimal 11A87, octal 215207).
What is the square root of 72327?
About 268.9368.
Is 72327 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 72327?
72327 is a palindrome: it reads 72327 backwards too; a semiprime: 3 × 24109, the product of two primes.