The number 46742
46742 is a composite number with 4 divisors. Its prime factorisation is 2 × 23371. Divisors (4): 1, 2, 23371, 46742.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 46742: a semiprime: 2 × 23371, the product of two primes.
- 2
46742 is composite. Its prime factorisation is
- 3
The divisors add up to 70116; without 46742 itself that is 23374, so 46742 is deficient (23374 is less than 46742). Euler's totient φ(46742) = 23370 numbers up to 46742 share no factor with it.
- 4
The digits of 46742 add up to 23, and repeating that until one digit is left gives the digital root 5. The Collatz sequence (halve if even, else 3n+1) takes 83 steps to reach 1.
LaTeX source of the formulas on this page
\[ 46742 = 2 \times 23371 \]
46742 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 70116 |
| Euler totient φ(n) | 23370 |
| Square | 2184814564 |
| Cube | 102122602350488 |
| Square root | 216.198982 |
| Digit sum / digital root | 23 / 5 |
| Collatz steps to 1 | 83 |
| Scientific notation | 4.6742 × |
46742 in other forms
| Form | Value |
|---|---|
| In words | forty-six thousand seven hundred and forty-two |
| Binary (base 2) | 1011011010010110 |
| Octal (base 8) | 133226 |
| Hexadecimal (base 16) | B696 |
| Base 3 | 2101010012 |
| As time | 46742 seconds = 12 h 59 min 2 s |
Is 46742 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (46742 ÷ 2 = 23371) | A number is divisible by 2 if the last digit is even (0, 2, 4, 6, 8). |
| 3 | No (remainder 2) | 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 2) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 3) | 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 5) | 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 3) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 2) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 46742 a prime number?
No. 46742 = 2 × 23371, so it is divisible by 2.
What are the factors of 46742?
1, 2, 23371, 46742.
What is 46742 in binary?
1011011010010110 (hexadecimal B696, octal 133226).
What is the square root of 46742?
About 216.1990.
Is 46742 divisible by 3?
No. Its digits add up to 23, which is not a multiple of 3.
What is special about the number 46742?
46742 is a semiprime: 2 × 23371, the product of two primes.