The number 30472
30472 is a composite number with 16 divisors. Its prime factorisation is × 13 × 293. Divisors (16): 1, 2, 4, 8, 13, 26, 52, 104, 293, 586, 1172, 2344, 3809, 7618, 15236, 30472.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
30472 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
30472 is composite. Its prime factorisation is
- 3
The divisors add up to 61740; without 30472 itself that is 31268, so 30472 is abundant (31268 is more than 30472). Euler's totient φ(30472) = 14016 numbers up to 30472 share no factor with it.
- 4
The digits of 30472 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 178 steps to reach 1.
LaTeX source of the formulas on this page
\[ 30472 = 2^{3} \times 13 \times 293 \]30472 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 61740 |
| Euler totient φ(n) | 14016 |
| Square | 928542784 |
| Cube | 28294555714048 |
| Square root | 174.562310 (= 2√7618) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 178 |
| Scientific notation | 3.0472 × |
30472 in other forms
| Form | Value |
|---|---|
| In words | thirty thousand four hundred and seventy-two |
| Binary (base 2) | 111011100001000 |
| Octal (base 8) | 73410 |
| Hexadecimal (base 16) | 7708 |
| Base 3 | 1112210121 |
| As time | 30472 seconds = 8 h 27 min 52 s |
Is 30472 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (30472 ÷ 2 = 15236) | 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 | Yes (30472 ÷ 4 = 7618) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | 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 | No (remainder 1) | 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 | Yes (30472 ÷ 8 = 3809) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | 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 4) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 30472 a prime number?
No. 30472 = × 13 × 293, so it is divisible by 2.
What are the factors of 30472?
1, 2, 4, 8, 13, 26, 52, 104, 293, 586, 1172, 2344, 3809, 7618, 15236, 30472.
What is 30472 in binary?
111011100001000 (hexadecimal 7708, octal 73410).
What is the square root of 30472?
About 174.5623, exactly 2√7618.
Is 30472 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 30472?
It is a composite number with 16 divisors.