Divisors of the Positive Integer 640

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Sum of all the Divisors of 640, including itself

1530

Sum of the Proper Divisors of 640

890

Properties 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

DCXL

The 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