The number 65377
65377 is a composite number with 8 divisors. Its prime factorisation is 13 × 47 × 107. Divisors (8): 1, 13, 47, 107, 611, 1391, 5029, 65377.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
65377 has no famous special property in the usual lists (prime, square, cube, triangular, Fibonacci, palindrome, perfect), but it is still a composite number.
- 2
65377 is composite. Its prime factorisation is
- 3
The divisors add up to 72576; without 65377 itself that is 7199, so 65377 is deficient (7199 is less than 65377). Euler's totient φ(65377) = 58512 numbers up to 65377 share no factor with it.
- 4
The digits of 65377 add up to 28, and repeating that until one digit is left gives the digital root 1. The Collatz sequence (halve if even, else 3n+1) takes 161 steps to reach 1.
LaTeX source of the formulas on this page
\[ 65377 = 13 \times 47 \times 107 \]
65377 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 8 |
| Sum of divisors | 72576 |
| Euler totient φ(n) | 58512 |
| Square | 4274152129 |
| Cube | 279431243737633 |
| Square root | 255.689265 |
| Digit sum / digital root | 28 / 1 |
| Collatz steps to 1 | 161 |
| Scientific notation | 6.5377 × |
65377 in other forms
| Form | Value |
|---|---|
| In words | sixty-five thousand three hundred and seventy-seven |
| Binary (base 2) | 1111111101100001 |
| Octal (base 8) | 177541 |
| Hexadecimal (base 16) | FF61 |
| Base 3 | 10022200101 |
| As time | 65377 seconds = 18 h 9 min 37 s |
Is 65377 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 2) | 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 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 1) | A number is divisible by 8 if the last three digits make a multiple of 8. |
| 9 | No (remainder 1) | A number is divisible by 9 if the digits add up to a multiple of 9. |
| 10 | No (remainder 7) | 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 1) | A number is divisible by 12 if it is divisible by both 3 and 4. |
Questions
Is 65377 a prime number?
No. 65377 = 13 × 47 × 107, so it is divisible by 13.
What are the factors of 65377?
1, 13, 47, 107, 611, 1391, 5029, 65377.
What is 65377 in binary?
1111111101100001 (hexadecimal FF61, octal 177541).
What is the square root of 65377?
About 255.6893.
Is 65377 divisible by 3?
No. Its digits add up to 28, which is not a multiple of 3.
What is special about the number 65377?
It is a composite number with 8 divisors.