The number 44490
44490 is a composite number with 16 divisors. Its prime factorisation is 2 × 3 × 5 × 1483. Divisors (16): 1, 2, 3, 5, 6, 10, 15, 30, 1483, 2966, 4449, 7415, 8898, 14830, 22245, 44490.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 44490: a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
44490 is composite. Its prime factorisation is
- 3
The divisors add up to 106848; without 44490 itself that is 62358, so 44490 is abundant (62358 is more than 44490). Euler's totient φ(44490) = 11856 numbers up to 44490 share no factor with it.
- 4
The digits of 44490 add up to 21, and repeating that until one digit is left gives the digital root 3. The Collatz sequence (halve if even, else 3n+1) takes 132 steps to reach 1.
LaTeX source of the formulas on this page
\[ 44490 = 2 \times 3 \times 5 \times 1483 \]
44490 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 106848 |
| Euler totient φ(n) | 11856 |
| Square | 1979360100 |
| Cube | 88061730849000 |
| Square root | 210.926527 |
| Digit sum / digital root | 21 / 3 |
| Collatz steps to 1 | 132 |
| Scientific notation | 4.449 × |
44490 in other forms
| Form | Value |
|---|---|
| In words | forty-four thousand four hundred and ninety |
| Binary (base 2) | 1010110111001010 |
| Octal (base 8) | 126712 |
| Hexadecimal (base 16) | ADCA |
| Base 3 | 2021000210 |
| As time | 44490 seconds = 12 h 21 min 30 s |
Is 44490 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (44490 ÷ 2 = 22245) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | Yes (44490 ÷ 3 = 14830) | 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 (44490 ÷ 5 = 8898) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | Yes (44490 ÷ 6 = 7415) | 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 2) | 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 | Yes (44490 ÷ 10 = 4449) | 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 | No (remainder 6) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 44490 a prime number?
No. 44490 = 2 × 3 × 5 × 1483, so it is divisible by 2.
What are the factors of 44490?
1, 2, 3, 5, 6, 10, 15, 30, 1483, 2966, 4449, 7415, 8898, 14830, 22245, 44490.
What is 44490 in binary?
1010110111001010 (hexadecimal ADCA, octal 126712).
What is the square root of 44490?
About 210.9265.
Is 44490 divisible by 3?
Yes. Its digits add up to 21, a multiple of 3.
What is special about the number 44490?
44490 is a happy number: repeatedly adding the squares of its digits reaches 1.