The number 5389
5389 is a composite number with 4 divisors. Its prime factorisation is 17 × 317. Divisors (4): 1, 17, 317, 5389.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 5389: a semiprime: 17 × 317, the product of two primes.
- 2
5389 is composite. Its prime factorisation is
- 3
The divisors add up to 5724; without 5389 itself that is 335, so 5389 is deficient (335 is less than 5389). Euler's totient φ(5389) = 5056 numbers up to 5389 share no factor with it.
- 4
The digits of 5389 add up to 25, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 67 steps to reach 1.
LaTeX source of the formulas on this page
\[ 5389 = 17 \times 317 \]
5389 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 5724 |
| Euler totient φ(n) | 5056 |
| Square | 29041321 |
| Cube | 156503678869 |
| Square root | 73.409809 |
| Digit sum / digital root | 25 / 7 |
| Collatz steps to 1 | 67 |
| Scientific notation | 5.389 × |
5389 in other forms
| Form | Value |
|---|---|
| In words | five thousand three hundred and eighty-nine |
| Binary (base 2) | 1010100001101 |
| Octal (base 8) | 12415 |
| Hexadecimal (base 16) | 150D |
| Base 3 | 21101121 |
| As time | 5389 seconds = 1 h 29 min 49 s |
Is 5389 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 4) | 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 6) | 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 7) | 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 | No (remainder 10) | 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 5389 a prime number?
No. 5389 = 17 × 317, so it is divisible by 17.
What are the factors of 5389?
1, 17, 317, 5389.
What is 5389 in binary?
1010100001101 (hexadecimal 150D, octal 12415).
What is the square root of 5389?
About 73.4098.
Is 5389 divisible by 3?
No. Its digits add up to 25, which is not a multiple of 3.
What is special about the number 5389?
5389 is a semiprime: 17 × 317, the product of two primes.