The number 46918
46918 is a composite number with 4 divisors. Its prime factorisation is 2 × 23459. Divisors (4): 1, 2, 23459, 46918.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 46918: a semiprime: 2 × 23459, the product of two primes.
- 2
46918 is composite. Its prime factorisation is
- 3
The divisors add up to 70380; without 46918 itself that is 23462, so 46918 is deficient (23462 is less than 46918). Euler's totient φ(46918) = 23458 numbers up to 46918 share no factor with it.
- 4
The digits of 46918 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 39 steps to reach 1.
LaTeX source of the formulas on this page
\[ 46918 = 2 \times 23459 \]
46918 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 70380 |
| Euler totient φ(n) | 23458 |
| Square | 2201298724 |
| Cube | 103280533532632 |
| Square root | 216.605632 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 39 |
| Scientific notation | 4.6918 × |
46918 in other forms
| Form | Value |
|---|---|
| In words | forty-six thousand nine hundred and eighteen |
| Binary (base 2) | 1011011101000110 |
| Octal (base 8) | 133506 |
| Hexadecimal (base 16) | B746 |
| Base 3 | 2101100201 |
| As time | 46918 seconds = 13 h 1 min 58 s |
Is 46918 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | Yes (46918 ÷ 2 = 23459) | 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 3) | 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 4) | 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 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 8) | 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 10) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 46918 a prime number?
No. 46918 = 2 × 23459, so it is divisible by 2.
What are the factors of 46918?
1, 2, 23459, 46918.
What is 46918 in binary?
1011011101000110 (hexadecimal B746, octal 133506).
What is the square root of 46918?
About 216.6056.
Is 46918 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 46918?
46918 is a semiprime: 2 × 23459, the product of two primes.