The number 27429
27429 is a composite number with 8 divisors. Its prime factorisation is 3 × 41 × 223. Divisors (8): 1, 3, 41, 123, 223, 669, 9143, 27429.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
27429 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
27429 is composite. Its prime factorisation is
- 3
The divisors add up to 37632; without 27429 itself that is 10203, so 27429 is deficient (10203 is less than 27429). Euler's totient φ(27429) = 17760 numbers up to 27429 share no factor with it.
- 4
The digits of 27429 add up to 24, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 59 steps to reach 1.
LaTeX source of the formulas on this page
\[ 27429 = 3 \times 41 \times 223 \]
27429 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 37632 |
| Euler totient φ(n) | 17760 |
| Square | 752350041 |
| Cube | 20636209274589 |
| Square root | 165.617028 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 59 |
| Scientific notation | 2.7429 × |
27429 in other forms
| Form | Value |
|---|---|
| In words | twenty-seven thousand four hundred and twenty-nine |
| Binary (base 2) | 110101100100101 |
| Octal (base 8) | 65445 |
| Hexadecimal (base 16) | 6B25 |
| Base 3 | 1101121220 |
| As time | 27429 seconds = 7 h 37 min 9 s |
Is 27429 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 (27429 ÷ 3 = 9143) | 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 4) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 27429 a prime number?
No. 27429 = 3 × 41 × 223, so it is divisible by 3.
What are the factors of 27429?
1, 3, 41, 123, 223, 669, 9143, 27429.
What is 27429 in binary?
110101100100101 (hexadecimal 6B25, octal 65445).
What is the square root of 27429?
About 165.6170.
Is 27429 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 27429?
It is a composite number with 8 divisors.