The number 42994
42994 is a composite number with 16 divisors. Its prime factorisation is 2 × 7 × 37 × 83. Divisors (16): 1, 2, 7, 14, 37, 74, 83, 166, 259, 518, 581, 1162, 3071, 6142, 21497, 42994.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
42994 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
42994 is composite. Its prime factorisation is
- 3
The divisors add up to 76608; without 42994 itself that is 33614, so 42994 is deficient (33614 is less than 42994). Euler's totient φ(42994) = 17712 numbers up to 42994 share no factor with it.
- 4
The digits of 42994 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 194 steps to reach 1.
LaTeX source of the formulas on this page
\[ 42994 = 2 \times 7 \times 37 \times 83 \]
42994 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 16 |
| Sum of divisors | 76608 |
| Euler totient φ(n) | 17712 |
| Square | 1848484036 |
| Cube | 79473722643784 |
| Square root | 207.349946 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 194 |
| Scientific notation | 4.2994 × |
42994 in other forms
| Form | Value |
|---|---|
| In words | forty-two thousand nine hundred and ninety-four |
| Binary (base 2) | 1010011111110010 |
| Octal (base 8) | 123762 |
| Hexadecimal (base 16) | A7F2 |
| Base 3 | 2011222101 |
| As time | 42994 seconds = 11 h 56 min 34 s |
Is 42994 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (42994 ÷ 2 = 21497) | 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 4) | 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 | Yes (42994 ÷ 7 = 6142) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 4) | 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 42994 a prime number?
No. 42994 = 2 × 7 × 37 × 83, so it is divisible by 2.
What are the factors of 42994?
1, 2, 7, 14, 37, 74, 83, 166, 259, 518, 581, 1162, 3071, 6142, 21497, 42994.
What is 42994 in binary?
1010011111110010 (hexadecimal A7F2, octal 123762).
What is the square root of 42994?
About 207.3499.
Is 42994 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 42994?
It is a composite number with 16 divisors.