The number 55379
55379 is a composite number with 4 divisors. Its prime factorisation is 79 × 701. Divisors (4): 1, 79, 701, 55379.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 55379: a semiprime: 79 × 701, the product of two primes.
- 2
55379 is composite. Its prime factorisation is
- 3
The divisors add up to 56160; without 55379 itself that is 781, so 55379 is deficient (781 is less than 55379). Euler's totient φ(55379) = 54600 numbers up to 55379 share no factor with it.
- 4
The digits of 55379 add up to 29, and repeating that until one digit is left gives the digital root 2. The Collatz sequence (halve if even, else 3n+1) takes 78 steps to reach 1.
LaTeX source of the formulas on this page
\[ 55379 = 79 \times 701 \]
55379 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 56160 |
| Euler totient φ(n) | 54600 |
| Square | 3066833641 |
| Cube | 169838180204939 |
| Square root | 235.327431 |
| Digit sum / digital root | 29 / 2 |
| Collatz steps to 1 | 78 |
| Scientific notation | 5.5379 × |
55379 in other forms
| Form | Value |
|---|---|
| In words | fifty-five thousand three hundred and seventy-nine |
| Binary (base 2) | 1101100001010011 |
| Octal (base 8) | 154123 |
| Hexadecimal (base 16) | D853 |
| Base 3 | 2210222002 |
| As time | 55379 seconds = 15 h 22 min 59 s |
Is 55379 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 3) | A number is divisible by 4 if the last two digits make a multiple of 4. |
| 5 | No (remainder 4) | 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 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 3) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 2) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 9) | 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 11) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 55379 a prime number?
No. 55379 = 79 × 701, so it is divisible by 79.
What are the factors of 55379?
1, 79, 701, 55379.
What is 55379 in binary?
1101100001010011 (hexadecimal D853, octal 154123).
What is the square root of 55379?
About 235.3274.
Is 55379 divisible by 3?
No. Its digits add up to 29, which is not a multiple of 3.
What is special about the number 55379?
55379 is a semiprime: 79 × 701, the product of two primes.