81330214 is an even 8-digits composite number following 81330213
and preceding 81330215 . In scientific notation, it is written as 8.1330214 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 34765632 positive integers (up to 81330214) that are relatively prime to 81330214.
81330214 has 16 divisors, whose sum is 139783968
The reverse of 81330214 is 41203318
Previous prime number is 397
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million three hundred thirty thousand two hundred fourteen
Scientific notation
8.1330214 × 10^7
Engineering notation
8.1330214 × 10^6
Prime Factorization
2 × 7 × 397 × 14633
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81330214
Product of the distinct prime numbers
The prime factorization of 81330214 is 2 × 7 × 397 × 14633.
Since it has a total of 4 prime factors.
6 , 1 , 38 , 11 , 746 , 39 , 3664 , 3303 , 17079 , 62328 , 370031 , 217654 , 1289710 , 2218693 , 73843609 , 20164450 , 27966371 , 13699606 , 8356876659 , 5820784928
n×2
162660428
n×3
243990642
n×4
325320856
n×5
406651070
n÷2
40665107
n÷3
27110071.333333
n÷3
20332553.5
n÷5
16266042.8
n2
6614603709285796
n3
5.3796713520141E+23
n4
4.3752982230897E+31
n5
3.5584394079771E+39
2 √n
9018.3265631712
3 √n
433.26203810626
4 √n
94.964870152974
5 √n
38.198858320919
1 , 2 , 7 , 14 , 397 , 794 , 2779 , 5558 , 14633 , 29266 , 102431 , 204862 , 5809301 , 11618602 , 40665107 , 81330214
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330213
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330214 can be divided by 16 positive divisors.
The sum of these divisors (counting 81330214) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110010000000000100110
3
Ternary
12200001000002011
4
Quaternary
10312100000212
5
Quinary
131310031324
6
Senary
12023104434
8
Octal
466200046
10
Decimal
81330214
12
Duodecimal
232a211a
16
Hexadecimal
4d90026
20
Vigesimal
15865ae
36
Base36
1cf6sm
md5
cec225c809f26e80f0beb555946a46f8
sha1
3016c256be1dbae552e66965c24f60742b6a3f72
sha256
59e22c9fb34222e0abca6e500e68cdc808b36a9b34024ad8dd6b69ba17931278
sha512
5b4c6349a5d23e3c5982f65f1d76e7982702648b7b725923951279fa84b8af2c4679665ac49f754def7d1b6436e6f402ab93f08c859ef9bb447421d2fdbcefb0
ripemd-160
5411cdc97d35eb4e544b4c4745cd94cf83424754
Diameter
162660428
Circumference
511012805.63457
Area
2.07803904195E+16
Volume
2.2534314664287E+24
Surface area
8.3121561678E+16
Circumference
511012805.63457
Perimeter
325320856
Area
6614603709285796
Diagonal
115018291.66951
Surface area
39687622255714776
Volume
5.3796713520141E+23
Space diagonal
140868062.83845
Perimeter
243990642
Area
2.8642074241041E+15
Altitude
70434031.419225
Surface area
2.8642074241041E+15
Volume
6.3400034892736E+22
Height
38339430.556502