Positive Integers » 20001-30000 » 20901-21000 » 20981

Divisors of the Positive Integer 20981

1, 20981

Sum of all the Divisors of 20981, including itself

20982

Sum of the Proper Divisors of 20981

1

Properties of the number 20981

The integer 20981 is an odd number.
The integer 20981 is a Prime number.
1 is less than 20981, so 20981 is a deficient number.

The number 20981 as a Roman Numeral

_X_XCMLXXXI (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 20981 in various Numeral Systems

Base Representation
2:101000111110101
3:1001210002
4:11013311
5:1132411
6:241045
7:115112
8:50765
9:31702
10:20981
11:14844
12:10185
13:971C
14:7909
15:633B
16:51F5
17:44A3
18:3ADB
19:3125
20:2C91
21:25C2
22:1L7F
23:1GF5
24:1CA5
25:18E6
26:150P
27:11L2
28:QL9
29:ORE
30:N9B
31:LPP
32:KFL
33:J8Q
34:I53
35:H4G
36:G6T