Positive Integers » 20001-30000 » 21001-21100 » 21005

Divisors of the Positive Integer 21005

1, 5, 4201, 21005

Sum of all the Divisors of 21005, including itself

25212

Sum of the Proper Divisors of 21005

4207

Properties of the number 21005

The integer 21005 is an odd number.
The integer 21005 is a Composite number.
4207 is less than 21005, so 21005 is a deficient number.

The number 21005 as a Roman Numeral

_X_XMV (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 21005 in various Numeral Systems

Base Representation
2:101001000001101
3:1001210222
4:11020031
5:1133010
6:241125
7:115145
8:51015
9:31728
10:21005
11:14866
12:101A5
13:973A
14:7925
15:6355
16:520D
17:44BA
18:3AEH
19:313A
20:2CA5
21:25D5
22:1L8H
23:1GG6
24:1CB5
25:18F5
26:151N
27:11LQ
28:QM5
29:OS9
30:NA5
31:LQI
32:KGD
33:J9H
34:I5R
35:H55
36:G7H