81273744 is an even 8-digits composite number following 81273743
and preceding 81273745 . In scientific notation, it is written as 8.1273744 × 10^7.
The sum of its digits is 36. It has a total of 7 prime factors and 30 positive divisors.
There are 27091200 positive integers (up to 81273744) that are relatively prime to 81273744.
81273744 has 30 divisors, whose sum is 227454006
The reverse of 81273744 is 44737218
Previous prime number is 3
Is Prime? no Number parity even Number length 8 Sum of Digits 36 Digital Root 9
Name
eighty-one million two hundred seventy-three thousand seven hundred forty-four
Scientific notation
8.1273744 × 10^7
Engineering notation
8.1273744 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 3 × 3 × 564401
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
7 Total number of prime factors
rad Radical
3386406 Product of the distinct prime numbers
The prime factorization of 81273744 is 2 × 2 × 2 × 2 × 3 × 3 × 564401.
Since it has a total of 7 prime factors.
8 , 8 , 94 , 21 , 976 , 313 , 4133 , 2164 , 30418 , 27855 , 617794 , 753886 , 4982012 , 5296237 , 1016793 , 23202179 , 1105735 , 229030630 , 7881047662 , 8655334895
n×2
162547488
n×3
243821232
n×4
325094976
n×5
406368720
n÷2
40636872
n÷3
27091248
n÷3
20318436
n÷5
16254748.8
n2
6605421463777536
n3
5.3684733305916E+23
n4
4.3631592714133E+31
n5
3.5461028965607E+39
2 √n9015.1951725961
3 √n433.16173929217
4 √n94.948381621785
5 √n38.193552325114
1 , 2 , 3 , 4 , 6 , 8 , 9 , 12 , 16 , 18 , 24 , 36 , 48 , 72 , 144 , 564401 , 1128802 , 1693203 , 2257604 , 3386406 , 4515208 , 5079609 , 6772812 , 9030416 , 10159218 , 13545624 , 20318436 , 27091248 , 40636872 , 81273744
30 divisors
τ Total Divisors
30 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81273743 Sum of the proper positive divisors of n
A Arithmetic Mean
0.033333333333333 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
30 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81273744 can be divided by 30 positive divisors.
The sum of these divisors (counting 81273744) is 1, the average is 0.033333333333333.
Base
System
Value
2
Binary
100110110000010001110010000
3
Ternary
12122221010121200
4
Quaternary
10312002032100
5
Quinary
131301224434
6
Senary
12021551200
8
Octal
466021620
10
Decimal
81273744
12
Duodecimal
23275500
16
Hexadecimal
4d82390
20
Vigesimal
157j474
36
Base36
1cdz80
md5
796677299c7a3aa6959635e2f5ffbdb7
sha1
b173a78f110e9c62f86d7354162e328c9608d5b8
sha256
8f53d24a249d52e425cd2ae6adffb6035b40b773d9ad8cd103d54c8bcef8f221
sha512
327c7074d5ce17a47f19e26b1718a6b45c9809f2ea7999a2d979edb8f518dc9cc30d46d49dbc4e85a59f4002c4666d50844548edcc362ffbbd5bb7222d51c29e
ripemd-160
7d07254594d36ef8e9b295dd19579a7f8bd287de
Diameter
162547488
Circumference
510657994.16028
Area
2.0751543544468E+16
Volume
2.2487408501839E+24
Surface area
8.3006174177871E+16
Circumference
510657994.16028
Perimeter
325094976
Area
6605421463777536
Diagonal
114938431.02964
Surface area
39632528782665216
Volume
5.3684733305916E+23
Space diagonal
140770253.92935
Perimeter
243821232
Area
2.8602313951672E+15
Altitude
70385126.964673
Surface area
2.8602313951672E+15
Volume
6.3268064944674E+22
Height
38312810.343213