The number 29470
29470 is a composite number with 16 divisors. Its prime factorisation is 2 × 5 × 7 × 421. Divisors (16): 1, 2, 5, 7, 10, 14, 35, 70, 421, 842, 2105, 2947, 4210, 5894, 14735, 29470.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
29470 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
29470 is composite. Its prime factorisation is
- 3
The divisors add up to 60768; without 29470 itself that is 31298, so 29470 is abundant (31298 is more than 29470). Euler's totient φ(29470) = 10080 numbers up to 29470 share no factor with it.
- 4
The digits of 29470 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 121 steps to reach 1.
LaTeX source of the formulas on this page
\[ 29470 = 2 \times 5 \times 7 \times 421 \]
29470 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 60768 |
| Euler totient φ(n) | 10080 |
| Square | 868480900 |
| Cube | 25594132123000 |
| Square root | 171.668285 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 121 |
| Scientific notation | 2.947 × |
29470 in other forms
| Form | Value |
|---|---|
| In words | twenty-nine thousand four hundred and seventy |
| Binary (base 2) | 111001100011110 |
| Octal (base 8) | 71436 |
| Hexadecimal (base 16) | 731E |
| Base 3 | 1111102111 |
| As time | 29470 seconds = 8 h 11 min 10 s |
Is 29470 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (29470 ÷ 2 = 14735) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | 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 | Yes (29470 ÷ 5 = 5894) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (29470 ÷ 7 = 4210) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (29470 ÷ 10 = 2947) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 29470 a prime number?
No. 29470 = 2 × 5 × 7 × 421, so it is divisible by 2.
What are the factors of 29470?
1, 2, 5, 7, 10, 14, 35, 70, 421, 842, 2105, 2947, 4210, 5894, 14735, 29470.
What is 29470 in binary?
111001100011110 (hexadecimal 731E, octal 71436).
What is the square root of 29470?
About 171.6683.
Is 29470 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 29470?
It is a composite number with 16 divisors.