82081805 is an odd 8-digits composite number following 82081804
and preceding 82081806 . In scientific notation, it is written as 8.2081805 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 57423168 positive integers (up to 82081805) that are relatively prime to 82081805.
82081805 has 16 divisors, whose sum is 111659520
The reverse of 82081805 is 50818028
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-two million eighty-one thousand eight hundred five
Scientific notation
8.2081805 × 10^7
Engineering notation
8.2081805 × 10^6
Prime Factorization
5 × 19 × 13 × 66463
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
82081805
Product of the distinct prime numbers
The prime factorization of 82081805 is 5 × 19 × 13 × 66463.
Since it has a total of 4 prime factors.
10 , 5 , 84 , 53 , 888 , 648 , 4457 , 4090 , 25674 , 74979 , 494947 , 48216 , 6476747 , 9132883 , 33341997 , 46276559 , 976527081 , 444528946 , 7146202440 , 1387930479
n×2
164163610
n×3
246245415
n×4
328327220
n×5
410409025
n÷2
41040902.5
n÷3
27360601.666667
n÷3
20520451.25
n÷5
16416361
n2
6737422712058025
n3
5.5301981725372E+23
n4
4.5392864800955E+31
n5
3.7259282769834E+39
2 √n
9059.9009376483
3 √n
434.59257223066
4 √n
95.183511900162
5 √n
38.269199650237
1 , 5 , 13 , 19 , 65 , 95 , 247 , 1235 , 66463 , 332315 , 864019 , 1262797 , 4320095 , 6313985 , 16416361 , 82081805
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-82081804
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 82081805 can be divided by 16 positive divisors.
The sum of these divisors (counting 82081805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111001000111100000001101
3
Ternary
12201110012001212
4
Quaternary
10321013200031
5
Quinary
132003104210
6
Senary
12051144205
8
Octal
471074015
10
Decimal
82081805
12
Duodecimal
235a5065
16
Hexadecimal
4e4780d
20
Vigesimal
15d04a5
36
Base36
1cvaq5
md5
e1bacba77d7c6a8a0964d2a37fa300d0
sha1
21f0d23f045cc5cd8d4f03b52613a22c3aefb9da
sha256
1ad1e76a1796f21b622d44c2c358bc7b382898ab784962ec71a8ebba65e09912
sha512
eb106a38e799089bf23456ef5c2a502c73898ecb4fb8a5224e39321ef9775a965bab6b5f5259c8471691d89197d5f5c70df88e17f37777e42322eda28c9e8a3f
ripemd-160
cb3758a1ac949ff6d9f26c5642eb2783911606af
Diameter
164163610
Circumference
515735191.16278
Area
2.1166237696331E+16
Volume
2.3164839935651E+24
Surface area
8.4664950785322E+16
Circumference
515735191.16278
Perimeter
328327220
Area
6737422712058025
Diagonal
116081201.85506
Surface area
40424536272348150
Volume
5.5301981725372E+23
Space diagonal
142169856.63696
Perimeter
246245415
Area
2.9173896123382E+15
Altitude
71084928.318481
Surface area
2.9173896123382E+15
Volume
6.5174010485108E+22
Height
38693733.951688