The number 73018
73018 is a composite number with 8 divisors. Its prime factorisation is 2 × 11 × 3319. Divisors (8): 1, 2, 11, 22, 3319, 6638, 36509, 73018.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
73018 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
73018 is composite. Its prime factorisation is
- 3
The divisors add up to 119520; without 73018 itself that is 46502, so 73018 is deficient (46502 is less than 73018). Euler's totient φ(73018) = 33180 numbers up to 73018 share no factor with it.
- 4
The digits of 73018 add up to 19, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 156 steps to reach 1.
LaTeX source of the formulas on this page
\[ 73018 = 2 \times 11 \times 3319 \]
73018 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 119520 |
| Euler totient φ(n) | 33180 |
| Square | 5331628324 |
| Cube | 389304836961832 |
| Square root | 270.218430 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 156 |
| Scientific notation | 7.3018 × |
73018 in other forms
| Form | Value |
|---|---|
| In words | seventy-three thousand and eighteen |
| Binary (base 2) | 10001110100111010 |
| Octal (base 8) | 216472 |
| Hexadecimal (base 16) | 11D3A |
| Base 3 | 10201011101 |
| As time | 73018 seconds = 20 h 16 min 58 s |
Is 73018 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (73018 ÷ 2 = 36509) | 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 1) | 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 1) | 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 (73018 ÷ 11 = 6638) | 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 73018 a prime number?
No. 73018 = 2 × 11 × 3319, so it is divisible by 2.
What are the factors of 73018?
1, 2, 11, 22, 3319, 6638, 36509, 73018.
What is 73018 in binary?
10001110100111010 (hexadecimal 11D3A, octal 216472).
What is the square root of 73018?
About 270.2184.
Is 73018 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 73018?
It is a composite number with 8 divisors.