The number 53990
53990 is a composite number with 8 divisors. Its prime factorisation is 2 × 5 × 5399. Divisors (8): 1, 2, 5, 10, 5399, 10798, 26995, 53990.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
53990 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
53990 is composite. Its prime factorisation is
- 3
The divisors add up to 97200; without 53990 itself that is 43210, so 53990 is deficient (43210 is less than 53990). Euler's totient φ(53990) = 21592 numbers up to 53990 share no factor with it.
- 4
The digits of 53990 add up to 26, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 184 steps to reach 1.
LaTeX source of the formulas on this page
\[ 53990 = 2 \times 5 \times 5399 \]
53990 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 97200 |
| Euler totient φ(n) | 21592 |
| Square | 2914920100 |
| Cube | 157376536199000 |
| Square root | 232.357483 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 184 |
| Scientific notation | 5.399 × |
53990 in other forms
| Form | Value |
|---|---|
| In words | fifty-three thousand nine hundred and ninety |
| Binary (base 2) | 1101001011100110 |
| Octal (base 8) | 151346 |
| Hexadecimal (base 16) | D2E6 |
| Base 3 | 2202001122 |
| As time | 53990 seconds = 14 h 59 min 50 s |
Is 53990 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (53990 ÷ 2 = 26995) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 | Yes (53990 ÷ 5 = 10798) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 2) | 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 6) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | Yes (53990 ÷ 10 = 5399) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 2) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 53990 a prime number?
No. 53990 = 2 × 5 × 5399, so it is divisible by 2.
What are the factors of 53990?
1, 2, 5, 10, 5399, 10798, 26995, 53990.
What is 53990 in binary?
1101001011100110 (hexadecimal D2E6, octal 151346).
What is the square root of 53990?
About 232.3575.
Is 53990 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 53990?
It is a composite number with 8 divisors.