The number 18029
18029 is a composite number with 6 divisors. Its prime factorisation is Ć 149. Divisors (6): 1, 11, 121, 149, 1639, 18029.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
18029 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
18029 is composite. Its prime factorisation is
- 3
The divisors add up to 19950; without 18029 itself that is 1921, so 18029 is deficient (1921 is less than 18029). Euler's totient Ļ(18029) = 16280 numbers up to 18029 share no factor with it.
- 4
The digits of 18029 add up to 20, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 92 steps to reach 1.
LaTeX source of the formulas on this page
\[ 18029 = 11^{2} \times 149 \]18029 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 6 |
| Sum of divisors | 19950 |
| Euler totient Ļ(n) | 16280 |
| Square | 325044841 |
| Cube | 5860233438389 |
| Square root | 134.272112 (= 11ā149) |
| Digit sum / digital root | 20 / 2 |
| Collatz steps to 1 | 92 |
| Scientific notation | 1.8029 Ć |
18029 in other forms
| Form | Value |
|---|---|
| In words | eighteen thousand and twenty-nine |
| Binary (base 2) | 100011001101101 |
| Octal (base 8) | 43155 |
| Hexadecimal (base 16) | 466D |
| Base 3 | 220201202 |
| As time | 18029 seconds = 5 h 0 min 29 s |
Is 18029 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 2) | 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 | No (remainder 4) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (18029 Ć· 11 = 1639) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 18029 a prime number?
No. 18029 = Ć 149, so it is divisible by 11.
What are the factors of 18029?
1, 11, 121, 149, 1639, 18029.
What is 18029 in binary?
100011001101101 (hexadecimal 466D, octal 43155).
What is the square root of 18029?
About 134.2721, exactly 11ā149.
Is 18029 divisible by 3?
No. Its digits add up to 20, which is not a multiple of 3.
What is special about the number 18029?
It is a composite number with 6 divisors.