The number 20067
20067 is a composite number with 4 divisors. Its prime factorisation is 3 × 6689. Divisors (4): 1, 3, 6689, 20067.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 20067: a semiprime: 3 × 6689, the product of two primes.
- 2
20067 is composite. Its prime factorisation is
- 3
The divisors add up to 26760; without 20067 itself that is 6693, so 20067 is deficient (6693 is less than 20067). Euler's totient φ(20067) = 13376 numbers up to 20067 share no factor with it.
- 4
The digits of 20067 add up to 15, and repeating that until one digit is left gives the digital root 6. The Collatz sequence (halve if even, else 3n+1) takes 43 steps to reach 1.
LaTeX source of the formulas on this page
\[ 20067 = 3 \times 6689 \]
20067 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 26760 |
| Euler totient φ(n) | 13376 |
| Square | 402684489 |
| Cube | 8080669640763 |
| Square root | 141.658039 |
| Digit sum / digital root | 15 / 6 |
| Collatz steps to 1 | 43 |
| Scientific notation | 2.0067 × |
20067 in other forms
| Form | Value |
|---|---|
| In words | twenty thousand and sixty-seven |
| Binary (base 2) | 100111001100011 |
| Octal (base 8) | 47143 |
| Hexadecimal (base 16) | 4E63 |
| Base 3 | 1000112020 |
| As time | 20067 seconds = 5 h 34 min 27 s |
Is 20067 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 (20067 ÷ 3 = 6689) | 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 5) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 6) | 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 3) | 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 20067 a prime number?
No. 20067 = 3 × 6689, so it is divisible by 3.
What are the factors of 20067?
1, 3, 6689, 20067.
What is 20067 in binary?
100111001100011 (hexadecimal 4E63, octal 47143).
What is the square root of 20067?
About 141.6580.
Is 20067 divisible by 3?
Yes. Its digits add up to 15, a multiple of 3.
What is special about the number 20067?
20067 is a semiprime: 3 × 6689, the product of two primes.