The number 61167
61167 is a composite number with 4 divisors. Its prime factorisation is 3 × 20389. Divisors (4): 1, 3, 20389, 61167.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 61167: a semiprime: 3 × 20389, the product of two primes.
- 2
61167 is composite. Its prime factorisation is
- 3
The divisors add up to 81560; without 61167 itself that is 20393, so 61167 is deficient (20393 is less than 61167). Euler's totient φ(61167) = 40776 numbers up to 61167 share no factor with it.
- 4
The digits of 61167 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 210 steps to reach 1.
LaTeX source of the formulas on this page
\[ 61167 = 3 \times 20389 \]
61167 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 81560 |
| Euler totient φ(n) | 40776 |
| Square | 3741401889 |
| Cube | 228850329344463 |
| Square root | 247.319631 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 210 |
| Scientific notation | 6.1167 × |
61167 in other forms
| Form | Value |
|---|---|
| In words | sixty-one thousand one hundred and sixty-seven |
| Binary (base 2) | 1110111011101111 |
| Octal (base 8) | 167357 |
| Hexadecimal (base 16) | EEEF |
| Base 3 | 10002220110 |
| As time | 61167 seconds = 16 h 59 min 27 s |
Is 61167 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 | Yes (61167 ÷ 3 = 20389) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 1) | 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 7) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 3) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 61167 a prime number?
No. 61167 = 3 × 20389, so it is divisible by 3.
What are the factors of 61167?
1, 3, 20389, 61167.
What is 61167 in binary?
1110111011101111 (hexadecimal EEEF, octal 167357).
What is the square root of 61167?
About 247.3196.
Is 61167 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 61167?
61167 is a semiprime: 3 × 20389, the product of two primes.