Positive Integers » 80001-90000 » 81901-82000 » 81981

Divisors of the Positive Integer 81981

1, 3, 9, 9109, 27327, 81981

Sum of all the Divisors of 81981, including itself

118430

Sum of the Proper Divisors of 81981

36449

Properties of the number 81981

The integer 81981 is an odd number.
The integer 81981 is a Composite number.
36449 is less than 81981, so 81981 is a deficient number.

The number 81981 as a Roman Numeral

_L_X_X_XMCMLXXXI (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 81981 in various Numeral Systems

Base Representation
2:10100000000111101
3:11011110100
4:110000331
5:10110411
6:1431313
7:461004
8:240075
9:134410
10:81981
11:56659
12:3B539
13:2B413
14:21C3B
15:19456
16:1403D
17:GBB7
18:E109
19:BI1F
20:A4J1
21:8HII
22:7F89
23:6GM9
24:5M7L
25:5646
26:4H73
27:44C9
28:3KFP
29:3ADR
30:312L
31:2N9H
32:2G1T
33:2999
34:22V7
35:1VWB
36:1R99