The number 7018
7018 is a composite number with 12 divisors. Its prime factorisation is 2 × × 29. Divisors (12): 1, 2, 11, 22, 29, 58, 121, 242, 319, 638, 3509, 7018.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
7018 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
7018 is composite. Its prime factorisation is
- 3
The divisors add up to 11970; without 7018 itself that is 4952, so 7018 is deficient (4952 is less than 7018). Euler's totient φ(7018) = 3080 numbers up to 7018 share no factor with it.
- 4
The digits of 7018 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 57 steps to reach 1.
LaTeX source of the formulas on this page
\[ 7018 = 2 \times 11^{2} \times 29 \]7018 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 11970 |
| Euler totient φ(n) | 3080 |
| Square | 49252324 |
| Cube | 345652809832 |
| Square root | 83.773504 (= 11√58) |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 57 |
| Scientific notation | 7.018 × |
7018 in other forms
| Form | Value |
|---|---|
| In words | seven thousand and eighteen |
| Binary (base 2) | 1101101101010 |
| Octal (base 8) | 15552 |
| Hexadecimal (base 16) | 1B6A |
| Base 3 | 100121221 |
| As time | 7018 seconds = 1 h 56 min 58 s |
Is 7018 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (7018 ÷ 2 = 3509) | 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 3) | 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 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 2) | 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 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | Yes (7018 ÷ 11 = 638) | 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 7018 a prime number?
No. 7018 = 2 × × 29, so it is divisible by 2.
What are the factors of 7018?
1, 2, 11, 22, 29, 58, 121, 242, 319, 638, 3509, 7018.
What is 7018 in binary?
1101101101010 (hexadecimal 1B6A, octal 15552).
What is the square root of 7018?
About 83.7735, exactly 11√58.
Is 7018 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 7018?
It is a composite number with 12 divisors.