The number 94121
94121 is the 9082nd prime number. Its only divisors are 1 and 94121.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 94121: the 9082nd prime number; a happy number: repeatedly adding the squares of its digits reaches 1.
- 2
94121 is prime, so its only factors are 1 and 94121. It is the 9082nd prime; the next prime is 94151 and the one before is 94117.
- 3
The divisors add up to 94122; without 94121 itself that is 1, so 94121 is deficient (1 is less than 94121). Euler's totient φ(94121) = 94120 numbers up to 94121 share no factor with it.
- 4
The digits of 94121 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 146 steps to reach 1.
94121 at a glance
| Property | Value |
|---|---|
| Type | prime |
| Number of divisors | 2 |
| Sum of divisors | 94122 |
| Euler totient φ(n) | 94120 |
| Square | 8858762641 |
| Cube | 833795598533561 |
| Square root | 306.791460 |
| Digit sum / digital root | 17 / 8 |
| Collatz steps to 1 | 146 |
| Scientific notation | 9.4121 × |
94121 in other forms
| Form | Value |
|---|---|
| In words | ninety-four thousand one hundred and twenty-one |
| Binary (base 2) | 10110111110101001 |
| Octal (base 8) | 267651 |
| Hexadecimal (base 16) | 16FA9 |
| Base 3 | 11210002222 |
| As time | 94121 seconds = 26 h 8 min 41 s |
Is 94121 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 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 1) | 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 5) | 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 94121 a prime number?
Yes. 94121 is divisible only by 1 and itself.
What are the factors of 94121?
1, 94121.
What is 94121 in binary?
10110111110101001 (hexadecimal 16FA9, octal 267651).
What is the square root of 94121?
About 306.7915.
Is 94121 divisible by 3?
No. Its digits add up to 17, which is not a multiple of 3.
What is special about the number 94121?
94121 is the 9082nd prime number; a happy number: repeatedly adding the squares of its digits reaches 1.