81338051 is an odd 8-digits composite number following 81338050
and preceding 81338052 . In scientific notation, it is written as 8.1338051 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 77801592 positive integers (up to 81338051) that are relatively prime to 81338051.
81338051 has 4 divisors, whose sum is 84874512
The reverse of 81338051 is 15083318
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million three hundred thirty-eight thousand fifty-one
Scientific notation
8.1338051 × 10^7
Engineering notation
8.1338051 × 10^6
Prime Factorization
23 × 3536437
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81338051
Product of the distinct prime numbers
The prime factorization of 81338051 is 23 × 3536437.
Since it has a total of 2 prime factors.
1 , 5 , 83 , 1 , 438 , 1000 , 4731 , 6054 , 78199 , 31436 , 801343 , 986483 , 3636073 , 7391852 , 81595172 , 43332343 , 636945309 , 214926028 , 4793870240 , 2094582703
n×2
162676102
n×3
244014153
n×4
325352204
n×5
406690255
n÷2
40669025.5
n÷3
27112683.666667
n÷3
20334512.75
n÷5
16267610.2
n2
6615878540478601
n3
5.3812266613525E+23
n4
4.3769848862365E+31
n5
3.5601541990294E+39
2 √n
9018.7610568193
3 √n
433.27595407249
4 √n
94.967157780041
5 √n
38.199594462876
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81338050
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81338051 can be divided by 4 positive divisors.
The sum of these divisors (counting 81338051) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010001111011000011
3
Ternary
12200001101211102
4
Quaternary
10312101323003
5
Quinary
131310304201
6
Senary
12023205015
8
Octal
466217303
10
Decimal
81338051
12
Duodecimal
232a676b
16
Hexadecimal
4d91ec3
20
Vigesimal
158752b
36
Base36
1cfcub
md5
4879e2b33cdce9d060695d15a56b9faa
sha1
97ff23462508645212b6e3bbbe719ee09e687a25
sha256
2108e9a041e28e19ed98e62d3aca911a7476095cb52f051acaaf59e7d187dc8a
sha512
ec75e97ad2c0fcc09738126c8c6d9c10eea6efa721699b2e6bdc8a5be47a861c6a323de3a9ea720ee635316f5429d5ae919c0d2ece87214b1768aac190f08e3c
ripemd-160
049cfe0339b442dbbc85ba3a89428619689da8e6
Diameter
162676102
Circumference
511062046.95782
Area
2.078439541981E+16
Volume
2.2540829528809E+24
Surface area
8.313758167924E+16
Circumference
511062046.95782
Perimeter
325352204
Area
6615878540478601
Diagonal
115029374.86119
Surface area
39695271242871606
Volume
5.3812266613525E+23
Space diagonal
140881636.92063
Perimeter
244014153
Area
2.8647594422034E+15
Altitude
70440818.460314
Surface area
2.8647594422034E+15
Volume
6.341836438907E+22
Height
38343124.953731