The number 60989
60989 is a composite number with 4 divisors. Its prime factorisation is 71 × 859. Divisors (4): 1, 71, 859, 60989.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 60989: a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 71 × 859, the product of two primes.
- 2
60989 is composite. Its prime factorisation is
- 3
The divisors add up to 61920; without 60989 itself that is 931, so 60989 is deficient (931 is less than 60989). Euler's totient φ(60989) = 60060 numbers up to 60989 share no factor with it.
- 4
The digits of 60989 add up to 32, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 73 steps to reach 1.
LaTeX source of the formulas on this page
\[ 60989 = 71 \times 859 \]
60989 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 61920 |
| Euler totient φ(n) | 60060 |
| Square | 3719658121 |
| Cube | 226858229141669 |
| Square root | 246.959511 |
| Digit sum / digital root | 32 / 5 |
| Collatz steps to 1 | 73 |
| Scientific notation | 6.0989 × |
60989 in other forms
| Form | Value |
|---|---|
| In words | sixty thousand nine hundred and eighty-nine |
| Binary (base 2) | 1110111000111101 |
| Octal (base 8) | 167075 |
| Hexadecimal (base 16) | EE3D |
| Base 3 | 10002122212 |
| As time | 60989 seconds = 16 h 56 min 29 s |
Is 60989 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 | 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 5) | 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 5) | 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 60989 a prime number?
No. 60989 = 71 × 859, so it is divisible by 71.
What are the factors of 60989?
1, 71, 859, 60989.
What is 60989 in binary?
1110111000111101 (hexadecimal EE3D, octal 167075).
What is the square root of 60989?
About 246.9595.
Is 60989 divisible by 3?
No. Its digits add up to 32, which is not a multiple of 3.
What is special about the number 60989?
60989 is a happy number: repeatedly adding the squares of its digits reaches 1; a semiprime: 71 × 859, the product of two primes.