82161885 is an odd 8-digits composite number following 82161884
and preceding 82161886 . In scientific notation, it is written as 8.2161885 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 40447680 positive integers (up to 82161885) that are relatively prime to 82161885.
82161885 has 16 divisors, whose sum is 132240960
The reverse of 82161885 is 58816128
Previous prime number is 169
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-two million one hundred sixty-one thousand eight hundred eighty-five
Scientific notation
8.2161885 × 10^7
Engineering notation
8.2161885 × 10^6
Prime Factorization
5 × 3 × 169 × 32411
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
82161885
Product of the distinct prime numbers
The prime factorization of 82161885 is 5 × 3 × 169 × 32411.
Since it has a total of 4 prime factors.
5 , 2 , 56 , 8 , 691 , 162 , 9598 , 2414 , 47121 , 6771 , 615312 , 709314 , 3884623 , 1840833 , 20705482 , 56462949 , 241768311 , 304896832 , 186656752 , 829598839
n×2
164323770
n×3
246485655
n×4
328647540
n×5
410809425
n÷2
41080942.5
n÷3
27387295
n÷3
20540471.25
n÷5
16432377
n2
6750575346753225
n3
5.5463999532377E+23
n4
4.5570267512192E+31
n5
3.744139078756E+39
2 √n
9064.3193346219
3 √n
434.73385754762
4 √n
95.20671895734
5 √n
38.27666391656
1 , 3 , 5 , 15 , 169 , 507 , 845 , 2535 , 32411 , 97233 , 162055 , 486165 , 5477459 , 16432377 , 27387295 , 82161885
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
-82161884
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 82161885 can be divided by 16 positive divisors.
The sum of these divisors (counting 82161885) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111001011011000011011101
3
Ternary
12201121020220210
4
Quaternary
10321123003131
5
Quinary
132013140020
6
Senary
12053003033
8
Octal
471330335
10
Decimal
82161885
12
Duodecimal
23623479
16
Hexadecimal
4e5b0dd
20
Vigesimal
15da4e5
36
Base36
1cx0il
md5
f9ea77b9070dd65bd3eab2055f4e2cee
sha1
08d387805ac91080f3dff9a10c62f7a71fd5a102
sha256
3f62589a6975571e8c52035f58180921427c4236af698424eb652bb37b69cce8
sha512
cd9b3eeba5a497083807057b0f9b80fc61a98681127f276dd6bbe3ca8441d15b8884a2f4d089066b972a86ec21d68c003862c5afcdd74fa4bc85d6625c7682c0
ripemd-160
26ce6c03635a806bdaf60d84b33039cd380f2f24
Diameter
164323770
Circumference
516238348.64218
Area
2.1207557916864E+16
Volume
2.323270579595E+24
Surface area
8.4830231667457E+16
Circumference
516238348.64218
Perimeter
328647540
Area
6750575346753225
Diagonal
116194452.07714
Surface area
40503452080519350
Volume
5.5463999532377E+23
Space diagonal
142308559.26563
Perimeter
246485655
Area
2.9230848702246E+15
Altitude
71154279.632816
Surface area
2.9230848702246E+15
Volume
6.5364950301786E+22
Height
38731484.025713