The number 29438
29438 is a composite number with 8 divisors. Its prime factorisation is 2 × 41 × 359. Divisors (8): 1, 2, 41, 82, 359, 718, 14719, 29438.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
29438 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
29438 is composite. Its prime factorisation is
- 3
The divisors add up to 45360; without 29438 itself that is 15922, so 29438 is deficient (15922 is less than 29438). Euler's totient φ(29438) = 14320 numbers up to 29438 share no factor with it.
- 4
The digits of 29438 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 147 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29438 = 2 \times 41 \times 359 \]
29438 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 45360 |
| Euler totient φ(n) | 14320 |
| Square | 866595844 |
| Cube | 25510848455672 |
| Square root | 171.575056 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 147 |
| Scientific notation | 2.9438 × |
29438 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand four hundred and thirty-eight |
| Binary (base 2) | 111001011111110 |
| Octal (base 8) | 71376 |
| Hexadecimal (base 16) | 72FE |
| Base 3 | 1111101022 |
| As time | 29438 seconds = 8 h 10 min 38 s |
Is 29438 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (29438 ÷ 2 = 14719) | 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 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | 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 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 29438 a prime number?
No. 29438 = 2 × 41 × 359, so it is divisible by 2.
What are the factors of 29438?
1, 2, 41, 82, 359, 718, 14719, 29438.
What is 29438 in binary?
111001011111110 (hexadecimal 72FE, octal 71376).
What is the square root of 29438?
About 171.5751.
Is 29438 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 29438?
It is a composite number with 8 divisors.