The number 20014
20014 is a composite number with 4 divisors. Its prime factorisation is 2 × 10007. Divisors (4): 1, 2, 10007, 20014.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 20014: a semiprime: 2 × 10007, the product of two primes.
- 2
20014 is composite. Its prime factorisation is
- 3
The divisors add up to 30024; without 20014 itself that is 10010, so 20014 is deficient (10010 is less than 20014). Euler's totient φ(20014) = 10006 numbers up to 20014 share no factor with it.
- 4
The digits of 20014 add up to 7, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 180 steps to reach 1.
LaTeX source of the formulas on this page
\[ 20014 = 2 \times 10007 \]
20014 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 30024 |
| Euler totient φ(n) | 10006 |
| Square | 400560196 |
| Cube | 8016811762744 |
| Square root | 141.470845 |
| Digit sum / digital root | 7 / 7 |
| Collatz steps to 1 | 180 |
| Scientific notation | 2.0014 × |
20014 in other forms
| Form | Value |
|---|---|
| In words | twenty thousand and fourteen |
| Binary (base 2) | 100111000101110 |
| Octal (base 8) | 47056 |
| Hexadecimal (base 16) | 4E2E |
| Base 3 | 1000110021 |
| As time | 20014 seconds = 5 h 33 min 34 s |
Is 20014 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (20014 ÷ 2 = 10007) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 2) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 5) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 20014 a prime number?
No. 20014 = 2 × 10007, so it is divisible by 2.
What are the factors of 20014?
1, 2, 10007, 20014.
What is 20014 in binary?
100111000101110 (hexadecimal 4E2E, octal 47056).
What is the square root of 20014?
About 141.4708.
Is 20014 divisible by 3?
No. Its digits add up to 7, which is not a multiple of 3.
What is special about the number 20014?
20014 is a semiprime: 2 × 10007, the product of two primes.