Positive Integers » 220001-230000 » 221901-222000 » 221991

Divisors of the Positive Integer 221991

1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 961, 1023, 2387, 2883, 6727, 7161, 10571, 20181, 31713, 73997, 221991

Sum of all the Divisors of 221991, including itself

381312

Sum of the Proper Divisors of 221991

159321

Properties of the number 221991

The integer 221991 is an odd number.
The integer 221991 is a Composite number.
159321 is less than 221991, so 221991 is a deficient number.

The number 221991 as a Roman Numeral

_C_C_X_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 221991 in various Numeral Systems

Base Representation
2:110110001100100111
3:102021111220
4:312030213
5:24100431
6:4431423
7:1613130
8:661447
9:367456
10:221991
11:141870
12:A8573
13:7A073
14:5AC87
15:45B96
16:36327
17:2B325
18:2212F
19:1D6HE
20:17EJB
21:12K80
22:KIEB
23:I5EI
24:G19F
25:E54G
26:CGA3
27:B7DO
28:A347
29:92RP
30:86JL
31:7E00
32:6OP7
33:65S0
34:5M15
35:567L
36:4RAF