The number 98401
98401 is a composite number with 4 divisors. Its prime factorisation is 19 × 5179. Divisors (4): 1, 19, 5179, 98401.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 98401: a semiprime: 19 × 5179, the product of two primes.
- 2
98401 is composite. Its prime factorisation is
- 3
The divisors add up to 103600; without 98401 itself that is 5199, so 98401 is deficient (5199 is less than 98401). Euler's totient φ(98401) = 93204 numbers up to 98401 share no factor with it.
- 4
The digits of 98401 add up to 22, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 146 steps to reach 1.
LaTeX source of the formulas on this page
\[ 98401 = 19 \times 5179 \]
98401 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 103600 |
| Euler totient φ(n) | 93204 |
| Square | 9682756801 |
| Cube | 952792951975201 |
| Square root | 313.689337 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 146 |
| Scientific notation | 9.8401 × |
98401 in other forms
| Form | Value |
|---|---|
| In words | ninety-eight thousand four hundred and one |
| Binary (base 2) | 11000000001100001 |
| Octal (base 8) | 300141 |
| Hexadecimal (base 16) | 18061 |
| Base 3 | 11222222111 |
| As time | 98401 seconds = 27 h 20 min 1 s |
Is 98401 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 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 1) | A number is divisible by 6 if it is divisible by both 2 and 3. |
| 7 | No (remainder 2) | 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 4) | 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 6) | A number is divisible by 11 if the alternating sum of the digits is a multiple of 11. |
| 12 | No (remainder 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 98401 a prime number?
No. 98401 = 19 × 5179, so it is divisible by 19.
What are the factors of 98401?
1, 19, 5179, 98401.
What is 98401 in binary?
11000000001100001 (hexadecimal 18061, octal 300141).
What is the square root of 98401?
About 313.6893.
Is 98401 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 98401?
98401 is a semiprime: 19 × 5179, the product of two primes.