81710040 is an even 8-digits composite number following 81710039
and preceding 81710041 . In scientific notation, it is written as 8.1710040 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 16 positive divisors.
There are 21789312 positive integers (up to 81710040) that are relatively prime to 81710040.
81710040 has 16 divisors, whose sum is 163420320
The reverse of 81710040 is 04001718
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million seven hundred ten thousand forty
Scientific notation
8.1710040 × 10^7
Engineering notation
8.1710040 × 10^6
Prime Factorization
2 × 2 × 2 × 15 × 680917
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20427510
Product of the distinct prime numbers
The prime factorization of 81710040 is 2 × 2 × 2 × 15 × 680917.
Since it has a total of 5 prime factors.
1 , 1 , 96 , 8 , 224 , 547 , 2525 , 4674 , 5078 , 27089 , 313409 , 261716 , 1261406 , 414458 , 90104834 , 16199672 , 588136681 , 496803289 , 9757895786 , 7059769607
n×2
163420080
n×3
245130120
n×4
326840160
n×5
408550200
n÷2
40855020
n÷3
27236680
n÷3
20427510
n÷5
16342008
n2
6676530636801600
n3
5.4553958539428E+23
n4
4.457606134415E+31
n5
3.642311755473E+39
2 √n
9039.3605968564
3 √n
433.93546011617
4 √n
95.075552046025
5 √n
38.234470895618
1 , 2 , 4 , 8 , 15 , 30 , 60 , 120 , 680917 , 1361834 , 2723668 , 5447336 , 10213755 , 20427510 , 40855020 , 81710040
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
-81710039
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 81710040 can be divided by 16 positive divisors.
The sum of these divisors (counting 81710040) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111101100101111011000
3
Ternary
12200202022002210
4
Quaternary
10313230233120
5
Quinary
131404210130
6
Senary
12035155120
8
Octal
467545730
10
Decimal
81710040
12
Duodecimal
23445aa0
16
Hexadecimal
4decbd8
20
Vigesimal
15adf20
36
Base36
1cnbvc
md5
89b98bdaeef22d01412c7e9c848c1ea2
sha1
cd4cb8b43ee94d36365e7167c31dc12038927c7e
sha256
cf738a53634de3d42ead7209487bd33e2674b0dcd91a815057481b42f7daad21
sha512
48f9c3f5cf56a7b4f9c360fcdf2d0d93f140cba5b9d6ba7a54c6b03e5866809141c84d55d7def1f26d8044eef6380ad3e5eb76aff0c949643686f187314a68d5
ripemd-160
fb16021f2111102e50cfd61f84caf3ec4b3b3b9e
Diameter
163420080
Circumference
513399322.77706
Area
2.0974939600043E+16
Volume
2.2851508716228E+24
Surface area
8.3899758400172E+16
Circumference
513399322.77706
Perimeter
326840160
Area
6676530636801600
Diagonal
115555446.75005
Surface area
40059183820809600
Volume
5.4553958539428E+23
Space diagonal
141525940.76849
Perimeter
245130120
Area
2.8910225703076E+15
Altitude
70762970.384243
Surface area
2.8910225703076E+15
Volume
6.4292456706333E+22
Height
38518482.250016