81330609 is an odd 8-digits composite number following 81330608
and preceding 81330610 . In scientific notation, it is written as 8.1330609 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 54191696 positive integers (up to 81330609) that are relatively prime to 81330609.
81330609 has 8 divisors, whose sum is 108498240
The reverse of 81330609 is 90603318
Previous prime number is 2237
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million three hundred thirty thousand six hundred nine
Scientific notation
8.1330609 × 10^7
Engineering notation
8.1330609 × 10^6
Prime Factorization
3 × 2237 × 12119
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330609
Product of the distinct prime numbers
The prime factorization of 81330609 is 3 × 2237 × 12119.
Since it has a total of 3 prime factors.
7 , 6 , 28 , 74 , 575 , 441 , 4110 , 8249 , 88727 , 1366 , 93397 , 309417 , 527301 , 8225720 , 22606775 , 22101875 , 978080836 , 324952891 , 8567621196 , 7551601915
n×2
162661218
n×3
243991827
n×4
325322436
n×5
406653045
n÷2
40665304.5
n÷3
27110203
n÷3
20332652.25
n÷5
16266121.8
n2
6614667960310881
n3
5.3797497354487E+23
n4
4.3753832225163E+31
n5
3.5585258209564E+39
2 √n
9018.3484629948
3 √n
433.26273951934
4 √n
94.964985457772
5 √n
38.19889542526
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
-81330608
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 81330609 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330609) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000110110001
3
Ternary
12200001000121210
4
Quaternary
10312100012301
5
Quinary
131310034414
6
Senary
12023110333
8
Octal
466200661
10
Decimal
81330609
12
Duodecimal
232a23a9
16
Hexadecimal
4d901b1
20
Vigesimal
15866a9
36
Base36
1cf73l
md5
99c76d2019e859a4a091ccae59d7ce8c
sha1
82defb108822846d86ef5dde9b3f99a128aa6055
sha256
7b671633bb4f07467e0c646fed5799529c9a89fa5815cf311fbeeabd296dda05
sha512
81f971a3c2a23de2f30f6a2f22556c4c5995cab5c50c02c67235e58786fb117538c4fb3338e63df77d316c890119edda3099291cff29e47b1577cd41c26c3f57
ripemd-160
eeaf104af532a860ffa1991b28a68a57b247eeb4
Diameter
162661218
Circumference
511015287.49277
Area
2.0780592270048E+16
Volume
2.253464299605E+24
Surface area
8.3122369080194E+16
Circumference
511015287.49277
Perimeter
325322436
Area
6614667960310881
Diagonal
115018850.28386
Surface area
39688007761865286
Volume
5.3797497354487E+23
Space diagonal
140868746.99852
Perimeter
243991827
Area
2.8642352456141E+15
Altitude
70434373.499259
Surface area
2.8642352456141E+15
Volume
6.3400958650372E+22
Height
38339616.761288