The number 32018
32018 is a composite number with 8 divisors. Its prime factorisation is 2 × 7 × 2287. Divisors (8): 1, 2, 7, 14, 2287, 4574, 16009, 32018.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 32018: a Harshad number: divisible by its digit sum 14.
- 2
32018 is composite. Its prime factorisation is
- 3
The divisors add up to 54912; without 32018 itself that is 22894, so 32018 is deficient (22894 is less than 32018). Euler's totient φ(32018) = 13716 numbers up to 32018 share no factor with it.
- 4
The digits of 32018 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 72 steps to reach 1.
LaTeX source of the formulas on this page
\[ 32018 = 2 \times 7 \times 2287 \]
32018 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 54912 |
| Euler totient φ(n) | 13716 |
| Square | 1025152324 |
| Cube | 32823327109832 |
| Square root | 178.935743 |
| Digit sum / digital root | 14 / 5 |
| Collatz steps to 1 | 72 |
| Scientific notation | 3.2018 × |
32018 in other forms
| Form | Value |
|---|---|
| In words | thirty-two thousand and eighteen |
| Binary (base 2) | 111110100010010 |
| Octal (base 8) | 76422 |
| Hexadecimal (base 16) | 7D12 |
| Base 3 | 1121220212 |
| As time | 32018 seconds = 8 h 53 min 38 s |
Is 32018 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (32018 ÷ 2 = 16009) | 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 3) | 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 | Yes (32018 ÷ 7 = 4574) | 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 2) | 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 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 8) | 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 32018 a prime number?
No. 32018 = 2 × 7 × 2287, so it is divisible by 2.
What are the factors of 32018?
1, 2, 7, 14, 2287, 4574, 16009, 32018.
What is 32018 in binary?
111110100010010 (hexadecimal 7D12, octal 76422).
What is the square root of 32018?
About 178.9357.
Is 32018 divisible by 3?
No. Its digits add up to 14, which is not a multiple of 3.
What is special about the number 32018?
32018 is a Harshad number: divisible by its digit sum 14.