81103472 is an even 8-digits composite number following 81103471
and preceding 81103473 . In scientific notation, it is written as 8.1103472 × 10^7.
The sum of its digits is 26. It has a total of 5 prime factors and 10 positive divisors.
There are 40551728 positive integers (up to 81103472) that are relatively prime to 81103472.
81103472 has 10 divisors, whose sum is 157138008
The reverse of 81103472 is 27430118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred three thousand four hundred seventy-two
Scientific notation
8.1103472 × 10^7
Engineering notation
8.1103472 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 5068967
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10137934
Product of the distinct prime numbers
The prime factorization of 81103472 is 2 × 2 × 2 × 2 × 5068967.
Since it has a total of 5 prime factors.
5 , 2 , 39 , 57 , 68 , 221 , 212 , 8329 , 25130 , 13386 , 837639 , 60193 , 6668218 , 2607436 , 81798579 , 6483185 , 523681128 , 452386542 , 1619560128 , 6045703200
n×2
162206944
n×3
243310416
n×4
324413888
n×5
405517360
n÷2
40551736
n÷3
27034490.666667
n÷3
20275868
n÷5
16220694.4
n2
6577773170454784
n3
5.3348024215233E+23
n4
4.3267099881955E+31
n5
3.5091120237973E+39
2 √n
9005.7466098042
3 √n
432.85903028707
4 √n
94.898612264902
5 √n
38.177535469108
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81103471
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81103472 can be divided by 10 positive divisors.
The sum of these divisors (counting 81103472) is 1, the average is 0.1.
Base
System
Value
2
Binary
100110101011000101001110000
3
Ternary
12122121111001022
4
Quaternary
10311120221300
5
Quinary
131230302342
6
Senary
12014155012
8
Octal
465305160
10
Decimal
81103472
12
Duodecimal
231b2a68
16
Hexadecimal
4d58a70
20
Vigesimal
156hidc
36
Base36
1cabu8
md5
29acc790354465e99a02f187574902bf
sha1
cf62d763c3af92371554f0616e2e5578b6fabcb5
sha256
0ce494760583a0090d71d11180ee401a8a3265ced6a787317b79e64483f2dc51
sha512
e442576ac7321eae0c7c7eb8a35b875386e43ada017e3651024539f2d645537913cc813e3561ee3f34aafab8fe970e7886ad354c1f30af1e0b3c86c0368e04c2
ripemd-160
03620b52321ef7140edf9efd5de27cc2982b7763
Diameter
162206944
Circumference
509588143.63165
Area
2.0664683869281E+16
Volume
2.2346368127748E+24
Surface area
8.2658735477123E+16
Circumference
509588143.63165
Perimeter
324413888
Area
6577773170454784
Diagonal
114697630.05795
Surface area
39466639022728704
Volume
5.3348024215233E+23
Space diagonal
140475334.17424
Perimeter
243310416
Area
2.8482593329728E+15
Altitude
70237667.08712
Surface area
2.8482593329728E+15
Volume
6.2871249475826E+22
Height
38232543.352649