The number 60389
60389 is a composite number with 4 divisors. Its prime factorisation is 7 × 8627. Divisors (4): 1, 7, 8627, 60389.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 60389: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 7 × 8627, the product of two primes.
- 2
60389 is composite. Its prime factorisation is
- 3
The divisors add up to 69024; without 60389 itself that is 8635, so 60389 is deficient (8635 is less than 60389). Euler's totient φ(60389) = 51756 numbers up to 60389 share no factor with it.
- 4
The digits of 60389 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 117 steps to reach 1.
LaTeX source of the formulas on this page
\[ 60389 = 7 \times 8627 \]
60389 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 69024 |
| Euler totient φ(n) | 51756 |
| Square | 3646831321 |
| Cube | 220228496643869 |
| Square root | 245.741734 |
| Digit sum / digital root | 26 / 8 |
| Collatz steps to 1 | 117 |
| Scientific notation | 6.0389 × |
60389 in other forms
| Form | Value |
|---|---|
| In words | sixty thousand three hundred and eighty-nine |
| Binary (base 2) | 1110101111100101 |
| Octal (base 8) | 165745 |
| Hexadecimal (base 16) | EBE5 |
| Base 3 | 10001211122 |
| As time | 60389 seconds = 16 h 46 min 29 s |
Is 60389 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 2) | 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 5) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (60389 ÷ 7 = 8627) | 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 8) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 60389 a prime number?
No. 60389 = 7 × 8627, so it is divisible by 7.
What are the factors of 60389?
1, 7, 8627, 60389.
What is 60389 in binary?
1110101111100101 (hexadecimal EBE5, octal 165745).
What is the square root of 60389?
About 245.7417.
Is 60389 divisible by 3?
No. Its digits add up to 26, which is not a multiple of 3.
What is special about the number 60389?
60389 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 7 × 8627, the product of two primes.