The number 16025
16025 is a composite number with 6 divisors. Its prime factorisation is Ć 641. Divisors (6): 1, 5, 25, 641, 3205, 16025.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
16025 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
16025 is composite. Its prime factorisation is
- 3
The divisors add up to 19902; without 16025 itself that is 3877, so 16025 is deficient (3877 is less than 16025). Euler's totient Ļ(16025) = 12800 numbers up to 16025 share no factor with it.
- 4
The digits of 16025 add up to 14, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 97 steps to reach 1.
LaTeX source of the formulas on this page
\[ 16025 = 5^{2} \times 641 \]16025 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 19902 |
| Euler totient Ļ(n) | 12800 |
| Square | 256800625 |
| Cube | 4115230015625 |
| Square root | 126.589889 (= 5ā641) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 97 |
| Scientific notation | 1.6025 Ć |
16025 in other forms
| Form | Value |
|---|---|
| In words | sixteen thousand and twenty-five |
| Binary (base 2) | 11111010011001 |
| Octal (base 8) | 37231 |
| Hexadecimal (base 16) | 3E99 |
| Base 3 | 210222112 |
| As time | 16025 seconds = 4 h 27 min 5 s |
Is 16025 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 2) | 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 (16025 Ć· 5 = 3205) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | 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 5) | 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 9) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 16025 a prime number?
No. 16025 = Ć 641, so it is divisible by 5.
What are the factors of 16025?
1, 5, 25, 641, 3205, 16025.
What is 16025 in binary?
11111010011001 (hexadecimal 3E99, octal 37231).
What is the square root of 16025?
About 126.5899, exactly 5ā641.
Is 16025 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 16025?
It is a composite number with 6 divisors.