The number 562
562 is a composite number with 4 divisors. Its prime factorisation is 2 × 281. Divisors (4): 1, 2, 281, 562.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 562: a semiprime: 2 × 281, the product of two primes.
- 2
562 is composite. Its prime factorisation is
- 3
The divisors add up to 846; without 562 itself that is 284, so 562 is deficient (284 is less than 562). Euler's totient φ(562) = 280 numbers up to 562 share no factor with it.
- 4
The digits of 562 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 43 steps to reach 1.
LaTeX source of the formulas on this page
\[ 562 = 2 \times 281 \]
562 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 846 |
| Euler totient φ(n) | 280 |
| Square | 315844 |
| Cube | 177504328 |
| Square root | 23.706539 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 43 |
| Scientific notation | 5.62 × |
562 in other forms
| Form | Value |
|---|---|
| In words | five hundred and sixty-two |
| Roman numerals | DLXII |
| Binary (base 2) | 1000110010 |
| Octal (base 8) | 1062 |
| Hexadecimal (base 16) | 232 |
| Base 3 | 202211 |
| As time | 562 seconds = 9 min 22 s |
Is 562 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (562 ÷ 2 = 281) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 1) | 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 | No (remainder 2) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 4) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 4) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 2) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 1) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 562 a prime number?
No. 562 = 2 × 281, so it is divisible by 2.
What are the factors of 562?
1, 2, 281, 562.
What is 562 in binary?
1000110010 (hexadecimal 232, octal 1062).
What is the square root of 562?
About 23.7065.
What is 562 in Roman numerals?
DLXII.
Is 562 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 562?
562 is a semiprime: 2 × 281, the product of two primes.