Divisors of the Positive Integer 640
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640Sum of all the Divisors of 640, including itself
1530Sum of the Proper Divisors of 640
890Properties of the number 640
The integer 640 is an even number.The integer 640 is a Composite number.
890 is greater than 640, so 640 is an abundant number.
The number 640 as a Roman Numeral
DCXLThe number 640 in various Numeral Systems
| Base | Representation |
|---|---|
| 2: | 1010000000 |
| 3: | 212201 |
| 4: | 22000 |
| 5: | 10030 |
| 6: | 2544 |
| 7: | 1603 |
| 8: | 1200 |
| 9: | 781 |
| 10: | 640 |
| 11: | 532 |
| 12: | 454 |
| 13: | 3A3 |
| 14: | 33A |
| 15: | 2CA |
| 16: | 280 |
| 17: | 23B |
| 18: | 1HA |
| 19: | 1ED |
| 20: | 1C0 |
| 21: | 19A |
| 22: | 172 |
| 23: | 14J |
| 24: | 12G |
| 25: | 10F |
| 26: | OG |
| 27: | NJ |
| 28: | MO |
| 29: | M2 |
| 30: | LA |
| 31: | KK |
| 32: | K0 |
| 33: | JD |
| 34: | IS |
| 35: | IA |
| 36: | HS |