The number 61025
61025 is a composite number with 6 divisors. Its prime factorisation is Ć 2441. Divisors (6): 1, 5, 25, 2441, 12205, 61025.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
61025 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
61025 is composite. Its prime factorisation is
- 3
The divisors add up to 75702; without 61025 itself that is 14677, so 61025 is deficient (14677 is less than 61025). Euler's totient Ļ(61025) = 48800 numbers up to 61025 share no factor with it.
- 4
The digits of 61025 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 117 steps to reach 1.
LaTeX source of the formulas on this page
\[ 61025 = 5^{2} \times 2441 \]61025 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 75702 |
| Euler totient Ļ(n) | 48800 |
| Square | 3724050625 |
| Cube | 227260189390625 |
| Square root | 247.032387 (= 5ā2441) |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 117 |
| Scientific notation | 6.1025 Ć |
61025 in other forms
| Form | Value |
|---|---|
| In words | sixty-one thousand and twenty-five |
| Binary (base 2) | 1110111001100001 |
| Octal (base 8) | 167141 |
| Hexadecimal (base 16) | EE61 |
| Base 3 | 10002201012 |
| As time | 61025 seconds = 16 h 57 min 5 s |
Is 61025 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 (61025 Ć· 5 = 12205) | 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 6) | 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 8) | 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 61025 a prime number?
No. 61025 = Ć 2441, so it is divisible by 5.
What are the factors of 61025?
1, 5, 25, 2441, 12205, 61025.
What is 61025 in binary?
1110111001100001 (hexadecimal EE61, octal 167141).
What is the square root of 61025?
About 247.0324, exactly 5ā2441.
Is 61025 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 61025?
It is a composite number with 6 divisors.