The number 42862
42862 is a composite number with 8 divisors. Its prime factorisation is 2 × 29 × 739. Divisors (8): 1, 2, 29, 58, 739, 1478, 21431, 42862.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42862 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42862 is composite. Its prime factorisation is
- 3
The divisors add up to 66600; without 42862 itself that is 23738, so 42862 is deficient (23738 is less than 42862). Euler's totient φ(42862) = 20664 numbers up to 42862 share no factor with it.
- 4
The digits of 42862 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 194 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42862 = 2 \times 29 \times 739 \]
42862 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 66600 |
| Euler totient φ(n) | 20664 |
| Square | 1837151044 |
| Cube | 78743968047928 |
| Square root | 207.031399 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 194 |
| Scientific notation | 4.2862 × |
42862 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand eight hundred and sixty-two |
| Binary (base 2) | 1010011101101110 |
| Octal (base 8) | 123556 |
| Hexadecimal (base 16) | A76E |
| Base 3 | 2011210111 |
| As time | 42862 seconds = 11 h 54 min 22 s |
Is 42862 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42862 ÷ 2 = 21431) | 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 1) | 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 6) | 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 6) | 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 42862 a prime number?
No. 42862 = 2 × 29 × 739, so it is divisible by 2.
What are the factors of 42862?
1, 2, 29, 58, 739, 1478, 21431, 42862.
What is 42862 in binary?
1010011101101110 (hexadecimal A76E, octal 123556).
What is the square root of 42862?
About 207.0314.
Is 42862 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 42862?
It is a composite number with 8 divisors.