The number 46421
46421 is a composite number with 4 divisors. Its prime factorisation is 61 × 761. Divisors (4): 1, 61, 761, 46421.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 46421: a semiprime: 61 × 761, the product of two primes.
- 2
46421 is composite. Its prime factorisation is
- 3
The divisors add up to 47244; without 46421 itself that is 823, so 46421 is deficient (823 is less than 46421). Euler's totient φ(46421) = 45600 numbers up to 46421 share no factor with it.
- 4
The digits of 46421 add up to 17, and repeating that until one digit is left gives the digital root 8. The Collatz sequence (halve if even, else 3n+1) takes 26 steps to reach 1.
LaTeX source of the formulas on this page
\[ 46421 = 61 \times 761 \]
46421 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 47244 |
| Euler totient φ(n) | 45600 |
| Square | 2154909241 |
| Cube | 100033041876461 |
| Square root | 215.455332 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 26 |
| Scientific notation | 4.6421 × |
46421 in other forms
| Form | Value |
|---|---|
| In words | forty-six thousand four hundred and twenty-one |
| Binary (base 2) | 1011010101010101 |
| Octal (base 8) | 132525 |
| Hexadecimal (base 16) | B555 |
| Base 3 | 2100200022 |
| As time | 46421 seconds = 12 h 53 min 41 s |
Is 46421 divisible by 2 to 12?
| Divisor | Answer | Rule |
|---|---|---|
| 2 | No (remainder 1) | 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 1) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 1) | A number is divisible by 5 if the last digit is 0 or 5. |
| 6 | No (remainder 5) | 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 5) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 8) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 1) | 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 5) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 46421 a prime number?
No. 46421 = 61 × 761, so it is divisible by 61.
What are the factors of 46421?
1, 61, 761, 46421.
What is 46421 in binary?
1011010101010101 (hexadecimal B555, octal 132525).
What is the square root of 46421?
About 215.4553.
Is 46421 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 46421?
46421 is a semiprime: 61 × 761, the product of two primes.