81738182 is an even 8-digits composite number following 81738181
and preceding 81738183 . In scientific notation, it is written as 8.1738182 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 32 positive divisors.
There are 37169440 positive integers (up to 81738182) that are relatively prime to 81738182.
81738182 has 32 divisors, whose sum is 134369280
The reverse of 81738182 is 28183718
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million seven hundred thirty-eight thousand one hundred eighty-two
Scientific notation
8.1738182 × 10^7
Engineering notation
8.1738182 × 10^6
Prime Factorization
2 × 23 × 29 × 71 × 863
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81738182
Product of the distinct prime numbers
The prime factorization of 81738182 is 2 × 23 × 29 × 71 × 863.
Since it has a total of 5 prime factors.
3 , 8 , 77 , 100 , 458 , 817 , 9933 , 9262 , 94665 , 61615 , 350084 , 923108 , 6358723 , 2647023 , 82250871 , 42820251 , 449452429 , 656869248 , 7454315683 , 7793215504
n×2
163476364
n×3
245214546
n×4
326952728
n×5
408690910
n÷2
40869091
n÷3
27246060.666667
n÷3
20434545.5
n÷5
16347636.4
n2
6681130396665124
n3
5.4610345232835E+23
n4
4.4637503377243E+31
n5
3.6485883750747E+39
2 √n
9040.9170994983
3 √n
433.98527206917
4 √n
95.08373730296
5 √n
38.237104222627
1 , 2 , 23 , 29 , 46 , 58 , 71 , 142 , 667 , 863 , 1334 , 1633 , 1726 , 2059 , 3266 , 4118 , 19849 , 25027 , 39698 , 47357 , 50054 , 61273 , 94714 , 122546 , 575621 , 1151242 , 1409279 , 1776917 , 2818558 , 3553834 , 40869091 , 81738182
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81738181
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81738182 can be divided by 32 positive divisors.
The sum of these divisors (counting 81738182) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110111110011100111000110
3
Ternary
12200210201201002
4
Quaternary
10313303213012
5
Quinary
131411110212
6
Senary
12035533302
8
Octal
467634706
10
Decimal
81738182
12
Duodecimal
2345a232
16
Hexadecimal
4df39c6
20
Vigesimal
15ah592
36
Base36
1cnxl2
md5
dcb785b89b2663305f5fac6074ee5dba
sha1
8c5afd046c8270e4ee1e6abb82ae259c72709163
sha256
eed06b4a3527d447842dc431536e4157c596b0d03d814476cb9ed8bddcff4bf4
sha512
26f171a4dcee84b514935415e51fafb29cc796d3eb524aa021b1fa1af1750473fa6e53379189cb90eda10ddebbf045d872a6b3aa6c22f21a8d52f9f67dea8c84
ripemd-160
a09883798939ab9f69e6a5119a6ce141b5678b44
Diameter
163476364
Circumference
513576144.17797
Area
2.0989390171839E+16
Volume
2.287512791913E+24
Surface area
8.3957560687354E+16
Circumference
513576144.17797
Perimeter
326952728
Area
6681130396665124
Diagonal
115595245.54812
Surface area
40086782379990744
Volume
5.4610345232835E+23
Space diagonal
141574684.14231
Perimeter
245214546
Area
2.8930143247542E+15
Altitude
70787342.071156
Surface area
2.8930143247542E+15
Volume
6.4358909061793E+22
Height
38531748.51604