81090717 is an odd 8-digits composite number following 81090716
and preceding 81090718 . In scientific notation, it is written as 8.1090717 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 52235712 positive integers (up to 81090717) that are relatively prime to 81090717.
81090717 has 16 divisors, whose sum is 111811200
The reverse of 81090717 is 71709018
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million ninety thousand seven hundred seventeen
Scientific notation
8.1090717 × 10^7
Engineering notation
8.1090717 × 10^6
Prime Factorization
3 × 149 × 37 × 4903
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81090717
Product of the distinct prime numbers
The prime factorization of 81090717 is 3 × 149 × 37 × 4903.
Since it has a total of 4 prime factors.
5 , 2 , 100 , 52 , 493 , 26 , 5385 , 8412 , 80129 , 23880 , 927871 , 168249 , 4359194 , 9830746 , 44908590 , 17904499 , 806714895 , 887483934 , 9094646323 , 6729499518
n×2
162181434
n×3
243272151
n×4
324362868
n×5
405453585
n÷2
40545358.5
n÷3
27030239
n÷3
20272679.25
n÷5
16218143.4
n2
6575704383574089
n3
5.3322858324407E+23
n4
4.3239888140155E+31
n5
3.506353532285E+39
2 √n
9005.0384230163
3 √n
432.83633743865
4 √n
94.894880910491
5 √n
38.176334570826
1 , 3 , 37 , 111 , 149 , 447 , 4903 , 5513 , 14709 , 16539 , 181411 , 544233 , 730547 , 2191641 , 27030239 , 81090717
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
-81090716
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 81090717 can be divided by 16 positive divisors.
The sum of these divisors (counting 81090717) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101010101100010011101
3
Ternary
12122120211112220
4
Quaternary
10311111202131
5
Quinary
131224400332
6
Senary
12014015553
8
Octal
465254235
10
Decimal
81090717
12
Duodecimal
231a75b9
16
Hexadecimal
4d5589d
20
Vigesimal
156g6fh
36
Base36
1ca1zx
md5
9310dd986e84062a1863a6733af15f5e
sha1
63bd66065a5abbb3e5d20e103fdce85e1ea774a8
sha256
9943e7e3759a8d2065a47da0b6bd4d2b489db58b8a4a952130d98d8ff49a32ae
sha512
724c4dd574501874d79e7e3564fce9ee1aa8cf665c0a5067c029c55808c359ee40378d9718eddc710e89981e048202baaed06214375de2b634de12a1179b6384
ripemd-160
71ab168dec45f66840b3c018778ce4fd39e3599b
Diameter
162181434
Circumference
509508001.60306
Area
2.0658184583615E+16
Volume
2.2335826664049E+24
Surface area
8.2632738334458E+16
Circumference
509508001.60306
Perimeter
324362868
Area
6575704383574089
Diagonal
114679591.76396
Surface area
39454226301444534
Volume
5.3322858324407E+23
Space diagonal
140453241.86619
Perimeter
243272151
Area
2.8473635219759E+15
Altitude
70226620.933095
Surface area
2.8473635219759E+15
Volume
6.2841591189062E+22
Height
38226530.587986