81008082 is an even 8-digits composite number following 81008081
and preceding 81008083 . In scientific notation, it is written as 8.1008082 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 26915616 positive integers (up to 81008082) that are relatively prime to 81008082.
81008082 has 16 divisors, whose sum is 135448920
The reverse of 81008082 is 28080018
Previous prime number is 317
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million eight thousand eighty-two
Scientific notation
8.1008082 × 10^7
Engineering notation
8.1008082 × 10^6
Prime Factorization
2 × 9 × 317 × 14197
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81008082
Product of the distinct prime numbers
The prime factorization of 81008082 is 2 × 9 × 317 × 14197.
Since it has a total of 4 prime factors.
5 , 6 , 23 , 8 , 807 , 691 , 5953 , 5870 , 42449 , 41816 , 249794 , 915002 , 8442868 , 6647995 , 71063940 , 37634934 , 577717894 , 522008794 , 5626535305 , 5311747343
n×2
162016164
n×3
243024246
n×4
324032328
n×5
405040410
n÷2
40504041
n÷3
27002694
n÷3
20252020.5
n÷5
16201616.4
n2
6562309349318724
n3
5.3160009387898E+23
n4
4.3063903996156E+31
n5
3.4885242661607E+39
2 √n
9000.4489888005
3 √n
432.68926105935
4 √n
94.870696154295
5 √n
38.168550725221
1 , 2 , 9 , 18 , 317 , 634 , 2853 , 5706 , 14197 , 28394 , 127773 , 255546 , 4500449 , 9000898 , 40504041 , 81008082
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
-81008081
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 81008082 can be divided by 16 positive divisors.
The sum of these divisors (counting 81008082) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101000001010111010010
3
Ternary
12122102122012100
4
Quaternary
10311001113102
5
Quinary
131214224312
6
Senary
12012141230
8
Octal
465012722
10
Decimal
81008082
12
Duodecimal
23167816
16
Hexadecimal
4d415d2
20
Vigesimal
1566042
36
Base36
1c8a8i
md5
d3e99b81c6a7c25c7ec1c70f61fa37f4
sha1
0c5cac766d582d3a3941e742a0df61daaa918f2e
sha256
a2263d167be0c8feaea5ee5f884bd0fdd4cb1df63322d91ded451c0e9ba6efb0
sha512
456be9a2c5e57acfa08d1f784841140a58b029fa32fc5057b5ba179d6b829f6d11a8a39063ffb1bd3b74cc0744259f3ec1ed567100b19f4ca5cf24d195c401a8
ripemd-160
c5cff977a8444ae5a75e618c4eb79420e267b7c2
Diameter
162016164
Circumference
508988790.5852
Area
2.0616102842403E+16
Volume
2.2267612661038E+24
Surface area
8.2464411369613E+16
Circumference
508988790.5852
Perimeter
324032328
Area
6562309349318724
Diagonal
114562728.22623
Surface area
39373856095912344
Volume
5.3160009387898E+23
Space diagonal
140310113.84771
Perimeter
243024246
Area
2.8415633020011E+15
Altitude
70155056.923853
Surface area
2.8415633020011E+15
Volume
6.2649671876872E+22
Height
38187576.075411