The number 77413
77413 is a composite number with 4 divisors. Its prime factorisation is 7 × 11059. Divisors (4): 1, 7, 11059, 77413.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 77413: a semiprime: 7 × 11059, the product of two primes.
- 2
77413 is composite. Its prime factorisation is
- 3
The divisors add up to 88480; without 77413 itself that is 11067, so 77413 is deficient (11067 is less than 77413). Euler's totient φ(77413) = 66348 numbers up to 77413 share no factor with it.
- 4
The digits of 77413 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 76 steps to reach 1.
LaTeX source of the formulas on this page
\[ 77413 = 7 \times 11059 \]
77413 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 88480 |
| Euler totient φ(n) | 66348 |
| Square | 5992772569 |
| Cube | 463918502883997 |
| Square root | 278.231918 |
| Digit sum / digital root | 22 / 4 |
| Collatz steps to 1 | 76 |
| Scientific notation | 7.7413 × |
77413 in other forms
| Form | Value |
|---|---|
| In words | seventy-seven thousand four hundred and thirteen |
| Binary (base 2) | 10010111001100101 |
| Octal (base 8) | 227145 |
| Hexadecimal (base 16) | 12E65 |
| Base 3 | 10221012011 |
| As time | 77413 seconds = 21 h 30 min 13 s |
Is 77413 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 3) | 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 | Yes (77413 ÷ 7 = 11059) | 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 5) | 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 3) | 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 77413 a prime number?
No. 77413 = 7 × 11059, so it is divisible by 7.
What are the factors of 77413?
1, 7, 11059, 77413.
What is 77413 in binary?
10010111001100101 (hexadecimal 12E65, octal 227145).
What is the square root of 77413?
About 278.2319.
Is 77413 divisible by 3?
No. Its digits add up to 22, which is not a multiple of 3.
What is special about the number 77413?
77413 is a semiprime: 7 × 11059, the product of two primes.