The number 55411
55411 is the 5627th prime number. Its only divisors are 1 and 55411.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55411: the 5627th prime number; a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
55411 is prime, so its only factors are 1 and 55411. It is the 5627th prime; the next prime is 55439 and the one before is 55399.
- 3
The divisors add up to 55412; without 55411 itself that is 1, so 55411 is deficient (1 is less than 55411). Euler's totient φ(55411) = 55410 numbers up to 55411 share no factor with it.
- 4
The digits of 55411 add up to 16, and repeating that until one digit is left gives the digital root 7. The Collatz sequence (halve if even, else 3n+1) takes 91 steps to reach 1.
55411 at a glance
| Property | Value |
|---|---|
| Type | prime |
| Number of divisors | 2 |
| Sum of divisors | 55412 |
| Euler totient φ(n) | 55410 |
| Square | 3070378921 |
| Cube | 170132766391531 |
| Square root | 235.395412 |
| Digit sum / digital root | 16 / 7 |
| Collatz steps to 1 | 91 |
| Scientific notation | 5.5411 × |
55411 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand four hundred and eleven |
| Binary (base 2) | 1101100001110011 |
| Octal (base 8) | 154163 |
| Hexadecimal (base 16) | D873 |
| Base 3 | 2211000021 |
| As time | 55411 seconds = 15 h 23 min 31 s |
Is 55411 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 1) | A number is divisible by 3 if the digits add up to a multiple of 3. |
| 4 | No (remainder 3) | 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 6) | 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 7) | 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 4) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 7) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55411 a prime number?
Yes. 55411 is divisible only by 1 and itself.
What are the factors of 55411?
1, 55411.
What is 55411 in binary?
1101100001110011 (hexadecimal D873, octal 154163).
What is the square root of 55411?
About 235.3954.
Is 55411 divisible by 3?
No. Its digits add up to 16, which is not a multiple of 3.
What is special about the number 55411?
55411 is the 5627th prime number; a happy number: repeatedly adding the squares of its digits reaches 1.