Divisors of the Positive Integer 91

1, 7, 13, 91

Sum of all the Divisors of 91, including itself

112

Sum of the Proper Divisors of 91

21

Properties of the number 91

The integer 91 is an odd number.
The integer 91 is a Composite number.
21 is less than 91, so 91 is a deficient number.

The number 91 as a Roman Numeral

XCI

The number 91 in various Numeral Systems

Base	Representation
2:	1011011
3:	10101
4:	1123
5:	331
6:	231
7:	160
8:	133
9:	111
10:	91
11:	83
12:	77
13:	70
14:	67
15:	61
16:	5B
17:	56
18:	51
19:	4F
20:	4B
21:	47
22:	43
23:	3M
24:	3J
25:	3G
26:	3D
27:	3A
28:	37
29:	34
30:	31
31:	2T
32:	2R
33:	2P
34:	2N
35:	2L
36:	2J