The number 23701
23701 is a composite number with 4 divisors. Its prime factorisation is 137 × 173. Divisors (4): 1, 137, 173, 23701.
Pick any whole number from 1 to 100,000.
How to work it out
- 1
What is special about 23701: a semiprime: 137 × 173, the product of two primes.
- 2
23701 is composite. Its prime factorisation is
- 3
The divisors add up to 24012; without 23701 itself that is 311, so 23701 is deficient (311 is less than 23701). Euler's totient φ(23701) = 23392 numbers up to 23701 share no factor with it.
- 4
The digits of 23701 add up to 13, and repeating that until one digit is left gives the digital root 4. The Collatz sequence (halve if even, else 3n+1) takes 38 steps to reach 1.
LaTeX source of the formulas on this page
\[ 23701 = 137 \times 173 \]
23701 at a glance
| Property | Value |
|---|---|
| Type | composite |
| Number of divisors | 4 |
| Sum of divisors | 24012 |
| Euler totient φ(n) | 23392 |
| Square | 561737401 |
| Cube | 13313738141101 |
| Square root | 153.951291 |
| Digit sum / digital root | 13 / 4 |
| Collatz steps to 1 | 38 |
| Scientific notation | 2.3701 × |
23701 in other forms
| Form | Value |
|---|---|
| In words | twenty-three thousand seven hundred and one |
| Binary (base 2) | 101110010010101 |
| Octal (base 8) | 56225 |
| Hexadecimal (base 16) | 5C95 |
| Base 3 | 1012111211 |
| As time | 23701 seconds = 6 h 35 min 1 s |
Is 23701 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 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 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 1) | A number is divisible by 10 if the last digit is 0. |
| 11 | No (remainder 7) | 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 23701 a prime number?
No. 23701 = 137 × 173, so it is divisible by 137.
What are the factors of 23701?
1, 137, 173, 23701.
What is 23701 in binary?
101110010010101 (hexadecimal 5C95, octal 56225).
What is the square root of 23701?
About 153.9513.
Is 23701 divisible by 3?
No. Its digits add up to 13, which is not a multiple of 3.
What is special about the number 23701?
23701 is a semiprime: 137 × 173, the product of two primes.