81309076 is an even 8-digits composite number following 81309075
and preceding 81309077 . In scientific notation, it is written as 8.1309076 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 6 positive divisors.
There are 40654536 positive integers (up to 81309076) that are relatively prime to 81309076.
81309076 has 6 divisors, whose sum is 142290890
The reverse of 81309076 is 67090318
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million three hundred nine thousand seventy-six
Scientific notation
8.1309076 × 10^7
Engineering notation
8.1309076 × 10^6
Prime Factorization
2 × 2 × 20327269
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40654538
Product of the distinct prime numbers
The prime factorization of 81309076 is 2 × 2 × 20327269.
Since it has a total of 3 prime factors.
3 , 9 , 45 , 98 , 254 , 212 , 2122 , 8236 , 5724 , 59814 , 586175 , 683592 , 9574053 , 8992260 , 48663463 , 33459862 , 502607256 , 733923916 , 6290366790 , 6896515749
n×2
162618152
n×3
243927228
n×4
325236304
n×5
406545380
n÷2
40654538
n÷3
27103025.333333
n÷3
20327269
n÷5
16261815.2
n2
6611165839973776
n3
5.3754778573103E+23
n4
4.3707513763636E+31
n5
3.5538175583785E+39
2 √n
9017.1545400974
3 √n
433.2244994268
4 √n
94.958699128081
5 √n
38.19687251175
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81309075
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81309076 can be divided by 6 positive divisors.
The sum of these divisors (counting 81309076) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110110001010110110010100
3
Ternary
12122222221002021
4
Quaternary
10312022312110
5
Quinary
131303342301
6
Senary
12022422524
8
Octal
466126624
10
Decimal
81309076
12
Duodecimal
23291a44
16
Hexadecimal
4d8ad94
20
Vigesimal
1583cdg
36
Base36
1ceqhg
md5
28889fcce6047b3a8c0bbd531d30eab0
sha1
f4ed78acb48319eed9ec478774ec93120f3a2786
sha256
fcaedbfa11fbf5a7456a70ea077aadad7dcb39e8e11671170cf17f48c0eea10a
sha512
33d21a1017716b0388627a62efd355b12bd96018d1ca4cf0295aa690e16a132c8bca0bcbe022dc7cd6889a2a5c8de8d7dd224b7135fe6d05eaee93d86ecd28c7
ripemd-160
eddd030bf0538929e25f370fc2520a753c52a145
Diameter
162618152
Circumference
510879991.66355
Area
2.0769590034525E+16
Volume
2.2516748994748E+24
Surface area
8.3078360138102E+16
Circumference
510879991.66355
Perimeter
325236304
Area
6611165839973776
Diagonal
114988398.02322
Surface area
39666995039842656
Volume
5.3754778573103E+23
Space diagonal
140831450.74848
Perimeter
243927228
Area
2.8627187830246E+15
Altitude
70415725.37424
Surface area
2.8627187830246E+15
Volume
6.3350614083704E+22
Height
38329466.007742