The number 14005
14005 is a composite number with 4 divisors. Its prime factorisation is 5 × 2801. Divisors (4): 1, 5, 2801, 14005.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 14005: a semiprime: 5 × 2801, the product of two primes.
- 2
14005 is composite. Its prime factorisation is
- 3
The divisors add up to 16812; without 14005 itself that is 2807, so 14005 is deficient (2807 is less than 14005). Euler's totient φ(14005) = 11200 numbers up to 14005 share no factor with it.
- 4
The digits of 14005 add up to 10, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 32 steps to reach 1.
LaTeX source of the formulas on this page
\[ 14005 = 5 \times 2801 \]
14005 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 16812 |
| Euler totient φ(n) | 11200 |
| Square | 196140025 |
| Cube | 2746941050125 |
| Square root | 118.342723 |
| Digit sum / digital root | 10 / 1 |
| Collatz steps to 1 | 32 |
| Scientific notation | 1.4005 × |
14005 in other forms
| Form | Value |
|---|---|
| In words | fourteen thousand and five |
| Binary (base 2) | 11011010110101 |
| Octal (base 8) | 33265 |
| Hexadecimal (base 16) | 36B5 |
| Base 3 | 201012201 |
| As time | 14005 seconds = 3 h 53 min 25 s |
Is 14005 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 1) | 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 | Yes (14005 ÷ 5 = 2801) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 1) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 5) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 14005 a prime number?
No. 14005 = 5 × 2801, so it is divisible by 5.
What are the factors of 14005?
1, 5, 2801, 14005.
What is 14005 in binary?
11011010110101 (hexadecimal 36B5, octal 33265).
What is the square root of 14005?
About 118.3427.
Is 14005 divisible by 3?
No. Its digits add up to 10, which is not a multiple of 3.
What is special about the number 14005?
14005 is a semiprime: 5 × 2801, the product of two primes.