The number 30025
30025 is a composite number with 6 divisors. Its prime factorisation is Ć 1201. Divisors (6): 1, 5, 25, 1201, 6005, 30025.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
30025 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
30025 is composite. Its prime factorisation is
- 3
The divisors add up to 37262; without 30025 itself that is 7237, so 30025 is deficient (7237 is less than 30025). Euler's totient Ļ(30025) = 24000 numbers up to 30025 share no factor with it.
- 4
The digits of 30025 add up to 10, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 64 steps to reach 1.
LaTeX source of the formulas on this page
\[ 30025 = 5^{2} \times 1201 \]30025 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 37262 |
| Euler totient Ļ(n) | 24000 |
| Square | 901500625 |
| Cube | 27067556265625 |
| Square root | 173.277235 (= 5ā1201) |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 64 |
| Scientific notation | 3.0025 Ć |
30025 in other forms
| Form | Value |
|---|---|
| In words | thirty thousand and twenty-five |
| Binary (base 2) | 111010101001001 |
| Octal (base 8) | 72511 |
| Hexadecimal (base 16) | 7549 |
| Base 3 | 1112012001 |
| As time | 30025 seconds = 8 h 20 min 25 s |
Is 30025 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 | No (remainder 1) | 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 | Yes (30025 Ć· 5 = 6005) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | 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 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 30025 a prime number?
No. 30025 = Ć 1201, so it is divisible by 5.
What are the factors of 30025?
1, 5, 25, 1201, 6005, 30025.
What is 30025 in binary?
111010101001001 (hexadecimal 7549, octal 72511).
What is the square root of 30025?
About 173.2772, exactly 5ā1201.
Is 30025 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 30025?
It is a composite number with 6 divisors.