82181 is an odd 5-digits composite number following 82180
and preceding 82182 . In scientific notation, it is written as 8.2181 × 10^4.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 72000 positive integers (up to 82181) that are relatively prime to 82181.
82181 has 8 divisors, whose sum is 92928
The reverse of 82181 is 18128
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 20
Digital Root 2
Name
eighty-two thousand one hundred eighty-one
Scientific notation
8.2181 × 10^4
Engineering notation
8.2181 × 10^3
Prime Factorization
11 × 241 × 31
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
82181
Product of the distinct prime numbers
The prime factorization of 82181 is 11 × 241 × 31.
Since it has a total of 3 prime factors.
5 , 7 , 52 , 46 , 517 , 456 , 6253 , 838 , 28488 , 10142 , 423308 , 815322 , 8160911 , 1119155 , 56170333 , 24144050 , 846588422 , 362896471 , 9475862291 , 4399142034
n×2
164362
n×3
246543
n×4
328724
n×5
410905
n÷2
41090.5
n÷3
27393.666666667
n÷3
20545.25
n÷5
16436.2
n2
6753716761
n3
555027197135741
n4
4.5612690087812E+19
n5
3.7484964841065E+24
2 √n
286.67228676661
3 √n
43.476756861017
4 √n
16.931399433201
5 √n
9.6151106030781
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-82180
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 82181 can be divided by 8 positive divisors.
The sum of these divisors (counting 82181) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100000100000101
3
Ternary
11011201202
4
Quaternary
110010011
5
Quinary
10112211
6
Senary
1432245
8
Octal
240405
10
Decimal
82181
12
Duodecimal
3b685
16
Hexadecimal
14105
20
Vigesimal
a591
36
Base36
1ret
md5
a8f39121177d2284d12ab3d1cf800056
sha1
3c61126d61b0a9a757f6fb7fdbc41a6381143355
sha256
eba53c1d1b7c51a3d80115f6a2aaf2e6edf5065775c608a3adf751664ebe34c5
sha512
0e8e9a961b1d13e2f4bd0582d2e85c97c5e9a1379f24f43dbbb7d47960253e2796884a9191ccfd0073d4b5e1acb09fd7fa85f2c760b1192ed4e279cbe9856c4a
ripemd-160
8e8d9282a0ba133e3ec476c9f9b5a14ec94df1be
Diameter
164362
Circumference
516358.45172933
Area
21217426960.784
Volume
2.3248924867522E+15
Surface area
84869707843.135
Circumference
516358.45172933
Perimeter
328724
Area
6753716761
Diagonal
116221.48476938
Surface area
40522300566
Volume
555027197135741
Space diagonal
142341.66741682
Perimeter
246543
Area
2924445142.4954
Altitude
71170.833708409
Surface area
2924445142.4954
Volume
65410582472941
Height
38740.494923128