Positive Integers » 20001-30000 » 21801-21900 » 21870

Divisors of the Positive Integer 21870

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 1215, 1458, 2187, 2430, 3645, 4374, 7290, 10935, 21870

Sum of all the Divisors of 21870, including itself

59040

Sum of the Proper Divisors of 21870

37170

Properties of the number 21870

The integer 21870 is an even number.
The integer 21870 is a Composite number.
37170 is greater than 21870, so 21870 is an abundant number.

The number 21870 as a Roman Numeral

_X_XMDCCCLXX (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 21870 in various Numeral Systems

Base Representation
2:101010101101110
3:1010000000
4:11111232
5:1144440
6:245130
7:120522
8:52556
9:33000
10:21870
11:15482
12:107A6
13:9C54
14:7D82
15:6730
16:556E
17:47B8
18:3D90
19:33B1
20:2EDA
21:27C9
22:2142
23:1I7K
24:1DN6
25:19OK
26:1694
27:1300
28:RP2
29:Q04
30:O90
31:MNF
32:LBE
33:K2O
34:IV8
35:HTU
36:GVI