81330650 is an even 8-digits composite number following 81330649
and preceding 81330651 . In scientific notation, it is written as 8.1330650 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 32532240 positive integers (up to 81330650) that are relatively prime to 81330650.
81330650 has 8 divisors, whose sum is 126875892
The reverse of 81330650 is 05603318
Previous prime number is 25
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million three hundred thirty thousand six hundred fifty
Scientific notation
8.1330650 × 10^7
Engineering notation
8.1330650 × 10^6
Prime Factorization
2 × 25 × 1626613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330650
Product of the distinct prime numbers
The prime factorization of 81330650 is 2 × 25 × 1626613.
Since it has a total of 3 prime factors.
9 , 3 , 68 , 93 , 647 , 632 , 1947 , 7161 , 38315 , 56193 , 318312 , 231561 , 7475258 , 3810576 , 75403087 , 44206482 , 704234171 , 756214682 , 5493330779 , 194923236
n×2
162661300
n×3
243991950
n×4
325322600
n×5
406653250
n÷2
40665325
n÷3
27110216.666667
n÷3
20332662.5
n÷5
16266130
n2
6614674629422500
n3
5.3797578714944E+23
n4
4.3753920453126E+31
n5
3.558534790501E+39
2 √n
9018.350736138
3 √n
433.26281232411
4 √n
94.964997426094
5 √n
38.198899276588
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
-81330649
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 81330650 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330650) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000111011010
3
Ternary
12200001000200022
4
Quaternary
10312100013122
5
Quinary
131310040100
6
Senary
12023110442
8
Octal
466200732
10
Decimal
81330650
12
Duodecimal
232a2422
16
Hexadecimal
4d901da
20
Vigesimal
15866ca
36
Base36
1cf74q
md5
ba3c2ff3ada083b31e9aae00a33d92d9
sha1
f3567544c73b6366156a7ab81d5127e2d1dbaed0
sha256
86cc8ac6f14e572583d9394421ad9f494f60841737b70a93c7452c3e38a2ea3d
sha512
5085decd47fcc1886c666ef152c6fc1e974733712dae813220bb26903cd8a6a2c964127ddc8ae1f3e82b8f8aedc18af667572c306485994f24290b4475039d2b
ripemd-160
2c9a13136b53069ab30cc49c2a57447cd6c6edc4
Diameter
162661300
Circumference
511015545.10337
Area
2.0780613221681E+16
Volume
2.2534677076238E+24
Surface area
8.3122452886722E+16
Circumference
511015545.10337
Perimeter
325322600
Area
6614674629422500
Diagonal
115018908.26662
Surface area
39688047776535000
Volume
5.3797578714944E+23
Space diagonal
140868818.0126
Perimeter
243991950
Area
2.8642381334242E+15
Altitude
70434409.006301
Surface area
2.8642381334242E+15
Volume
6.340105453459E+22
Height
38339636.088873