The number 53989
53989 is a composite number with 4 divisors. Its prime factorisation is 13 × 4153. Divisors (4): 1, 13, 4153, 53989.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 53989: a semiprime: 13 × 4153, the product of two primes.
- 2
53989 is composite. Its prime factorisation is
- 3
The divisors add up to 58156; without 53989 itself that is 4167, so 53989 is deficient (4167 is less than 53989). Euler's totient φ(53989) = 49824 numbers up to 53989 share no factor with it.
- 4
The digits of 53989 add up to 34, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 184 steps to reach 1.
LaTeX source of the formulas on this page
\[ 53989 = 13 \times 4153 \]
53989 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 58156 |
| Euler totient φ(n) | 49824 |
| Square | 2914812121 |
| Cube | 157367791600669 |
| Square root | 232.355331 |
| Digit sum / digital root | 34 / 7 |
| Collatz steps to 1 | 184 |
| Scientific notation | 5.3989 × |
53989 in other forms
| Form | Value |
|---|---|
| In words | fifty-three thousand nine hundred and eighty-nine |
| Binary (base 2) | 1101001011100101 |
| Octal (base 8) | 151345 |
| Hexadecimal (base 16) | D2E5 |
| Base 3 | 2202001121 |
| As time | 53989 seconds = 14 h 59 min 49 s |
Is 53989 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 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 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 1) | 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 53989 a prime number?
No. 53989 = 13 × 4153, so it is divisible by 13.
What are the factors of 53989?
1, 13, 4153, 53989.
What is 53989 in binary?
1101001011100101 (hexadecimal D2E5, octal 151345).
What is the square root of 53989?
About 232.3553.
Is 53989 divisible by 3?
No. Its digits add up to 34, which is not a multiple of 3.
What is special about the number 53989?
53989 is a semiprime: 13 × 4153, the product of two primes.