Positive Integers » 160001-170000 » 161901-162000 » 161991

Divisors of the Positive Integer 161991

1, 3, 9, 41, 123, 369, 439, 1317, 3951, 17999, 53997, 161991

Sum of all the Divisors of 161991, including itself

240240

Sum of the Proper Divisors of 161991

78249

Properties of the number 161991

The integer 161991 is an odd number.
The integer 161991 is a Composite number.
78249 is less than 161991, so 161991 is a deficient number.

The number 161991 as a Roman Numeral

_C_L_XMCMXCI (Roman Numerals with underscores in front have their values increased by 1,000. The underscore represents a line over the numeral, because the Romans used overlines to multiply by 1,000.)

The number 161991 in various Numeral Systems

Base Representation
2:100111100011000111
3:22020012200
4:213203013
5:20140431
6:3245543
7:1243164
8:474307
9:266180
10:161991
11:100785
12:798B3
13:5896B
14:4306B
15:32EE6
16:278C7
17:1FG8F
18:19DH9
19:14BDG
20:104JB
21:HA6I
22:F4F5
23:D752
24:BH5F
25:A94G
26:95GB
27:865I
28:7AHB
29:6IHQ
30:5TTL
31:5DHG
32:4U67
33:4GOR
34:444F
35:3R8B
36:3GZR