The number 30488
30488 is a composite number with 16 divisors. Its prime factorisation is × 37 × 103. Divisors (16): 1, 2, 4, 8, 37, 74, 103, 148, 206, 296, 412, 824, 3811, 7622, 15244, 30488.
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How to work it out
- 1
30488 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
30488 is composite. Its prime factorisation is
- 3
The divisors add up to 59280; without 30488 itself that is 28792, so 30488 is deficient (28792 is less than 30488). Euler's totient φ(30488) = 14688 numbers up to 30488 share no factor with it.
- 4
The digits of 30488 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 41 steps to reach 1.
LaTeX source of the formulas on this page
\[ 30488 = 2^{3} \times 37 \times 103 \]30488 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 59280 |
| Euler totient φ(n) | 14688 |
| Square | 929518144 |
| Cube | 28339149174272 |
| Square root | 174.608133 (= 2√7622) |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 41 |
| Scientific notation | 3.0488 × |
30488 in other forms
| Form | Value |
|---|---|
| In words | thirty thousand four hundred and eighty-eight |
| Binary (base 2) | 111011100011000 |
| Octal (base 8) | 73430 |
| Hexadecimal (base 16) | 7718 |
| Base 3 | 1112211012 |
| As time | 30488 seconds = 8 h 28 min 8 s |
Is 30488 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (30488 ÷ 2 = 15244) | 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 | Yes (30488 ÷ 4 = 7622) | 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 | Yes (30488 ÷ 8 = 3811) | 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 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 8) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 30488 a prime number?
No. 30488 = × 37 × 103, so it is divisible by 2.
What are the factors of 30488?
1, 2, 4, 8, 37, 74, 103, 148, 206, 296, 412, 824, 3811, 7622, 15244, 30488.
What is 30488 in binary?
111011100011000 (hexadecimal 7718, octal 73430).
What is the square root of 30488?
About 174.6081, exactly 2√7622.
Is 30488 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 30488?
It is a composite number with 16 divisors.