81008030 is an even 8-digits composite number following 81008029
and preceding 81008031 . In scientific notation, it is written as 8.1008030 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 32403208 positive integers (up to 81008030) that are relatively prime to 81008030.
81008030 has 8 divisors, whose sum is 145814472
The reverse of 81008030 is 03080018
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million eight thousand thirty
Scientific notation
8.1008030 × 10^7
Engineering notation
8.1008030 × 10^6
Prime Factorization
2 × 5 × 8100803
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81008030
Product of the distinct prime numbers
The prime factorization of 81008030 is 2 × 5 × 8100803.
Since it has a total of 3 prime factors.
6 , 3 , 12 , 30 , 909 , 292 , 3874 , 1805 , 72824 , 87012 , 620140 , 409508 , 8222672 , 6967701 , 74931178 , 57943745 , 854388812 , 605058319 , 5344625993 , 1282743324
n×2
162016060
n×3
243024090
n×4
324032120
n×5
405040150
n÷2
40504015
n÷3
27002676.666667
n÷3
20252007.5
n÷5
16201606
n2
6562300924480900
n3
5.3159907015938E+23
n4
4.3063793423443E+31
n5
3.4885130695601E+39
2 √n
9000.4461000553
3 √n
432.68916847662
4 √n
94.870680929649
5 √n
38.168545825055
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81008029
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81008030 can be divided by 8 positive divisors.
The sum of these divisors (counting 81008030) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101000001010110011110
3
Ternary
12122102122010102
4
Quaternary
10311001112132
5
Quinary
131214224110
6
Senary
12012141102
8
Octal
465012636
10
Decimal
81008030
12
Duodecimal
23167792
16
Hexadecimal
4d4159e
20
Vigesimal
156601a
36
Base36
1c8a72
md5
2aa68a3cebdf531e11fbf40490b25690
sha1
12026d168ceca04491f6a06dbe94cd6050b87ec4
sha256
87c023e502a3501d29ef635cbe641856e6ba86c5e8b05d38ad55d6553bfed31e
sha512
ad596b3db847a3687dce03c81b15ed4d8189958f1ff85218c7bfa94ddc0505cd2a0f809613080d7afc37361461fd5e11ba953d7799afadd849804040a6954fb8
ripemd-160
33620f3d4c2fc6e6ff9614da205fa2be186bccd4
Diameter
162016060
Circumference
508988463.85956
Area
2.0616076374995E+16
Volume
2.2267569779571E+24
Surface area
8.2464305499979E+16
Circumference
508988463.85956
Perimeter
324032120
Area
6562300924480900
Diagonal
114562654.68713
Surface area
39373805546885400
Volume
5.3159907015938E+23
Space diagonal
140310023.78106
Perimeter
243024090
Area
2.8415596539393E+15
Altitude
70155011.890532
Surface area
2.8415596539393E+15
Volume
6.264955123036E+22
Height
38187551.562376