The number 18014
18014 is a composite number with 4 divisors. Its prime factorisation is 2 × 9007. Divisors (4): 1, 2, 9007, 18014.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 18014: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 9007, the product of two primes.
- 2
18014 is composite. Its prime factorisation is
- 3
The divisors add up to 27024; without 18014 itself that is 9010, so 18014 is deficient (9010 is less than 18014). Euler's totient φ(18014) = 9006 numbers up to 18014 share no factor with it.
- 4
The digits of 18014 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 79 steps to reach 1.
LaTeX source of the formulas on this page
\[ 18014 = 2 \times 9007 \]
18014 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 27024 |
| Euler totient φ(n) | 9006 |
| Square | 324504196 |
| Cube | 5845618586744 |
| Square root | 134.216243 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 79 |
| Scientific notation | 1.8014 × |
18014 in other forms
| Form | Value |
|---|---|
| In words | eighteen thousand and fourteen |
| Binary (base 2) | 100011001011110 |
| Octal (base 8) | 43136 |
| Hexadecimal (base 16) | 465E |
| Base 3 | 220201012 |
| As time | 18014 seconds = 5 h 0 min 14 s |
Is 18014 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (18014 ÷ 2 = 9007) | 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 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 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 5) | 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 7) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 18014 a prime number?
No. 18014 = 2 × 9007, so it is divisible by 2.
What are the factors of 18014?
1, 2, 9007, 18014.
What is 18014 in binary?
100011001011110 (hexadecimal 465E, octal 43136).
What is the square root of 18014?
About 134.2162.
Is 18014 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 18014?
18014 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 2 × 9007, the product of two primes.