The number 61061
61061 is a composite number with 16 divisors. Its prime factorisation is 7 × 11 × 13 × 61. Divisors (16): 1, 7, 11, 13, 61, 77, 91, 143, 427, 671, 793, 1001, 4697, 5551, 8723, 61061.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
61061 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
61061 is composite. Its prime factorisation is
- 3
The divisors add up to 83328; without 61061 itself that is 22267, so 61061 is deficient (22267 is less than 61061). Euler's totient φ(61061) = 43200 numbers up to 61061 share no factor with it.
- 4
The digits of 61061 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 135 steps to reach 1.
LaTeX source of the formulas on this page
\[ 61061 = 7 \times 11 \times 13 \times 61 \]
61061 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 83328 |
| Euler totient φ(n) | 43200 |
| Square | 3728445721 |
| Cube | 227662624169981 |
| Square root | 247.105241 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 135 |
| Scientific notation | 6.1061 × |
61061 in other forms
| Form | Value |
|---|---|
| In words | sixty-one thousand and sixty-one |
| Binary (base 2) | 1110111010000101 |
| Octal (base 8) | 167205 |
| Hexadecimal (base 16) | EE85 |
| Base 3 | 10002202112 |
| As time | 61061 seconds = 16 h 57 min 41 s |
Is 61061 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 | No (remainder 1) | 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 | Yes (61061 ÷ 7 = 8723) | 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 5) | 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (61061 ÷ 11 = 5551) | 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 61061 a prime number?
No. 61061 = 7 × 11 × 13 × 61, so it is divisible by 7.
What are the factors of 61061?
1, 7, 11, 13, 61, 77, 91, 143, 427, 671, 793, 1001, 4697, 5551, 8723, 61061.
What is 61061 in binary?
1110111010000101 (hexadecimal EE85, octal 167205).
What is the square root of 61061?
About 247.1052.
Is 61061 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 61061?
It is a composite number with 16 divisors.