The number 18037
18037 is a composite number with 4 divisors. Its prime factorisation is 17 × 1061. Divisors (4): 1, 17, 1061, 18037.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 18037: a semiprime: 17 × 1061, the product of two primes.
- 2
18037 is composite. Its prime factorisation is
- 3
The divisors add up to 19116; without 18037 itself that is 1079, so 18037 is deficient (1079 is less than 18037). Euler's totient φ(18037) = 16960 numbers up to 18037 share no factor with it.
- 4
The digits of 18037 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 141 steps to reach 1.
LaTeX source of the formulas on this page
\[ 18037 = 17 \times 1061 \]
18037 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 19116 |
| Euler totient φ(n) | 16960 |
| Square | 325333369 |
| Cube | 5868037976653 |
| Square root | 134.301899 |
| Digit sum / digital root | 19 / 1 |
| Collatz steps to 1 | 141 |
| Scientific notation | 1.8037 × |
18037 in other forms
| Form | Value |
|---|---|
| In words | eighteen thousand and thirty-seven |
| Binary (base 2) | 100011001110101 |
| Octal (base 8) | 43165 |
| Hexadecimal (base 16) | 4675 |
| Base 3 | 220202001 |
| As time | 18037 seconds = 5 h 0 min 37 s |
Is 18037 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 | No (remainder 2) | 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 7) | 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 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 18037 a prime number?
No. 18037 = 17 × 1061, so it is divisible by 17.
What are the factors of 18037?
1, 17, 1061, 18037.
What is 18037 in binary?
100011001110101 (hexadecimal 4675, octal 43165).
What is the square root of 18037?
About 134.3019.
Is 18037 divisible by 3?
No. Its digits add up to 19, which is not a multiple of 3.
What is special about the number 18037?
18037 is a semiprime: 17 × 1061, the product of two primes.