The number 64488
64488 is a composite number with 16 divisors. Its prime factorisation is × 3 × 2687. Divisors (16): 1, 2, 3, 4, 6, 8, 12, 24, 2687, 5374, 8061, 10748, 16122, 21496, 32244, 64488.
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How to work it out
- 1
64488 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
64488 is composite. Its prime factorisation is
- 3
The divisors add up to 161280; without 64488 itself that is 96792, so 64488 is abundant (96792 is more than 64488). Euler's totient φ(64488) = 21488 numbers up to 64488 share no factor with it.
- 4
The digits of 64488 add up to 30, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 99 steps to reach 1.
LaTeX source of the formulas on this page
\[ 64488 = 2^{3} \times 3 \times 2687 \]64488 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 161280 |
| Euler totient φ(n) | 21488 |
| Square | 4158702144 |
| Cube | 268186383862272 |
| Square root | 253.944876 (= 2√16122) |
| Digit sum / digital root | 30 / 3 |
| Collatz steps to 1 | 99 |
| Scientific notation | 6.4488 × |
64488 in other forms
| Form | Value |
|---|---|
| In words | sixty-four thousand four hundred and eighty-eight |
| Binary (base 2) | 1111101111101000 |
| Octal (base 8) | 175750 |
| Hexadecimal (base 16) | FBE8 |
| Base 3 | 10021110110 |
| As time | 64488 seconds = 17 h 54 min 48 s |
Is 64488 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (64488 ÷ 2 = 32244) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (64488 ÷ 3 = 21496) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | Yes (64488 ÷ 4 = 16122) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 3) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (64488 ÷ 6 = 10748) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 4) | 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 | Yes (64488 ÷ 8 = 8061) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 3) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | Yes (64488 ÷ 12 = 5374) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 64488 a prime number?
No. 64488 = × 3 × 2687, so it is divisible by 2.
What are the factors of 64488?
1, 2, 3, 4, 6, 8, 12, 24, 2687, 5374, 8061, 10748, 16122, 21496, 32244, 64488.
What is 64488 in binary?
1111101111101000 (hexadecimal FBE8, octal 175750).
What is the square root of 64488?
About 253.9449, exactly 2√16122.
Is 64488 divisible by 3?
Yes. Its digits add up to 30, a multiple of 3.
What is special about the number 64488?
It is a composite number with 16 divisors.