The number 29165
29165 is a composite number with 8 divisors. Its prime factorisation is 5 × 19 × 307. Divisors (8): 1, 5, 19, 95, 307, 1535, 5833, 29165.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
29165 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
29165 is composite. Its prime factorisation is
- 3
The divisors add up to 36960; without 29165 itself that is 7795, so 29165 is deficient (7795 is less than 29165). Euler's totient φ(29165) = 22032 numbers up to 29165 share no factor with it.
- 4
The digits of 29165 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 165 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29165 = 5 \times 19 \times 307 \]
29165 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 36960 |
| Euler totient φ(n) | 22032 |
| Square | 850597225 |
| Cube | 24807668067125 |
| Square root | 170.777633 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 165 |
| Scientific notation | 2.9165 × |
29165 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand one hundred and sixty-five |
| Binary (base 2) | 111000111101101 |
| Octal (base 8) | 70755 |
| Hexadecimal (base 16) | 71ED |
| Base 3 | 1111000012 |
| As time | 29165 seconds = 8 h 6 min 5 s |
Is 29165 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 | Yes (29165 ÷ 5 = 5833) | 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 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 5) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 29165 a prime number?
No. 29165 = 5 × 19 × 307, so it is divisible by 5.
What are the factors of 29165?
1, 5, 19, 95, 307, 1535, 5833, 29165.
What is 29165 in binary?
111000111101101 (hexadecimal 71ED, octal 70755).
What is the square root of 29165?
About 170.7776.
Is 29165 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 29165?
It is a composite number with 8 divisors.