Divisors of the Positive Integer 13

1, 13

Sum of all the Divisors of 13, including itself

14

Sum of the Proper Divisors of 13

1

Properties of the number 13

The integer 13 is an odd number.
The integer 13 is a Prime number.
1 is less than 13, so 13 is a deficient number.

The number 13 as a Roman Numeral

XIII

The number 13 in various Numeral Systems

Base	Representation
2:	1101
3:	111
4:	31
5:	23
6:	21
7:	16
8:	15
9:	14
10:	13
11:	12
12:	11
13:	10
14:	D
15:	D
16:	D
17:	D
18:	D
19:	D
20:	D
21:	D
22:	D
23:	D
24:	D
25:	D
26:	D
27:	D
28:	D
29:	D
30:	D
31:	D
32:	D
33:	D
34:	D
35:	D
36:	D