Positive Integers » 20001-30000 » 21001-21100 » 21021

Divisors of the Positive Integer 21021

1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 143, 147, 231, 273, 429, 539, 637, 1001, 1617, 1911, 3003, 7007, 21021

Sum of all the Divisors of 21021, including itself

38304

Sum of the Proper Divisors of 21021

17283

Properties of the number 21021

The integer 21021 is an odd number.
The integer 21021 is a Composite number.
17283 is less than 21021, so 21021 is a deficient number.

The number 21021 as a Roman Numeral

_X_XMXXI (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 21021 in various Numeral Systems

Base Representation
2:101001000011101
3:1001211120
4:11020131
5:1133041
6:241153
7:115200
8:51035
9:31746
10:21021
11:14880
12:101B9
13:9750
14:7937
15:6366
16:521D
17:44C9
18:3AFF
19:3147
20:2CB1
21:25E0
22:1L9B
23:1GGM
24:1CBL
25:18FL
26:152D
27:11MF
28:QML
29:OSP
30:NAL
31:LR3
32:KGT
33:JA0
34:I69
35:H5L
36:G7X