The number 29409
29409 is a composite number with 4 divisors. Its prime factorisation is 3 × 9803. Divisors (4): 1, 3, 9803, 29409.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 29409: a semiprime: 3 × 9803, the product of two primes.
- 2
29409 is composite. Its prime factorisation is
- 3
The divisors add up to 39216; without 29409 itself that is 9807, so 29409 is deficient (9807 is less than 29409). Euler's totient φ(29409) = 19604 numbers up to 29409 share no factor with it.
- 4
The digits of 29409 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 103 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29409 = 3 \times 9803 \]
29409 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 39216 |
| Euler totient φ(n) | 19604 |
| Square | 864889281 |
| Cube | 25435528864929 |
| Square root | 171.490525 |
| Digit sum / digital root | 24 / 6 |
| Collatz steps to 1 | 103 |
| Scientific notation | 2.9409 × |
29409 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand four hundred and nine |
| Binary (base 2) | 111001011100001 |
| Octal (base 8) | 71341 |
| Hexadecimal (base 16) | 72E1 |
| Base 3 | 1111100020 |
| As time | 29409 seconds = 8 h 10 min 9 s |
Is 29409 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 (29409 ÷ 3 = 9803) | 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 2) | 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 1) | 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 29409 a prime number?
No. 29409 = 3 × 9803, so it is divisible by 3.
What are the factors of 29409?
1, 3, 9803, 29409.
What is 29409 in binary?
111001011100001 (hexadecimal 72E1, octal 71341).
What is the square root of 29409?
About 171.4905.
Is 29409 divisible by 3?
Yes. Its digits add up to 24, a multiple of 3.
What is special about the number 29409?
29409 is a semiprime: 3 × 9803, the product of two primes.