The number 60921
60921 is a composite number with 12 divisors. Its prime factorisation is × 7 × 967. Divisors (12): 1, 3, 7, 9, 21, 63, 967, 2901, 6769, 8703, 20307, 60921.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
60921 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
60921 is composite. Its prime factorisation is
- 3
The divisors add up to 100672; without 60921 itself that is 39751, so 60921 is deficient (39751 is less than 60921). Euler's totient φ(60921) = 34776 numbers up to 60921 share no factor with it.
- 4
The digits of 60921 add up to 18, and repeating that until one digit is left gives the digital root 9. The Collatz sequence (halve if even, else 3n+1) takes 179 steps to reach 1.
LaTeX source of the formulas on this page
\[ 60921 = 3^{2} \times 7 \times 967 \]60921 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 12 |
| Sum of divisors | 100672 |
| Euler totient φ(n) | 34776 |
| Square | 3711368241 |
| Cube | 226100264609961 |
| Square root | 246.821798 (= 3√6769) |
| Digit sum / digital root | 18 / 9 |
| Collatz steps to 1 | 179 |
| Scientific notation | 6.0921 × |
60921 in other forms
| Form | Value |
|---|---|
| In words | sixty thousand nine hundred and twenty-one |
| Binary (base 2) | 1110110111111001 |
| Octal (base 8) | 166771 |
| Hexadecimal (base 16) | EDF9 |
| Base 3 | 10002120100 |
| As time | 60921 seconds = 16 h 55 min 21 s |
Is 60921 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 | Yes (60921 ÷ 3 = 20307) | 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 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 3) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | Yes (60921 ÷ 7 = 8703) | 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | Yes (60921 ÷ 9 = 6769) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 9) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 60921 a prime number?
No. 60921 = × 7 × 967, so it is divisible by 3.
What are the factors of 60921?
1, 3, 7, 9, 21, 63, 967, 2901, 6769, 8703, 20307, 60921.
What is 60921 in binary?
1110110111111001 (hexadecimal EDF9, octal 166771).
What is the square root of 60921?
About 246.8218, exactly 3√6769.
Is 60921 divisible by 3?
Yes. Its digits add up to 18, a multiple of 3.
What is special about the number 60921?
It is a composite number with 12 divisors.