81330651 is an odd 8-digits composite number following 81330650
and preceding 81330652 . In scientific notation, it is written as 8.1330651 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 54220428 positive integers (up to 81330651) that are relatively prime to 81330651.
81330651 has 4 divisors, whose sum is 90367400
The reverse of 81330651 is 15603318
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million three hundred thirty thousand six hundred fifty-one
Scientific notation
8.1330651 × 10^7
Engineering notation
8.1330651 × 10^6
Prime Factorization
9 × 9036739
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81330651
Product of the distinct prime numbers
The prime factorization of 81330651 is 9 × 9036739.
Since it has a total of 2 prime factors.
3 , 8 , 53 , 36 , 286 , 781 , 379 , 9960 , 34764 , 90481 , 989463 , 341775 , 25476 , 4135518 , 3699927 , 43533643 , 459112752 , 667184428 , 2404404419 , 369145259
n×2
162661302
n×3
243991953
n×4
325322604
n×5
406653255
n÷2
40665325.5
n÷3
27110217
n÷3
20332662.75
n÷5
16266130.2
n2
6614674792083801
n3
5.3797580699347E+23
n4
4.3753922605029E+31
n5
3.5585350092706E+39
2 √n
9018.3507915805
3 √n
433.26281409983
4 √n
94.964997718004
5 √n
38.198899370523
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330650
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330651 can be divided by 4 positive divisors.
The sum of these divisors (counting 81330651) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010000000111011011
3
Ternary
12200001000200100
4
Quaternary
10312100013123
5
Quinary
131310040101
6
Senary
12023110443
8
Octal
466200733
10
Decimal
81330651
12
Duodecimal
232a2423
16
Hexadecimal
4d901db
20
Vigesimal
15866cb
36
Base36
1cf74r
md5
6cda5a9d2ba7d74aef3c1ead5dc53cc2
sha1
4cfc91e7b03f9cf16fcdfd9c7270de16c2984c58
sha256
f0837e13aaa59bc2abdfa21dd754b16343654768e69448eed93192c631c2f91f
sha512
edb1b74a267621b96322438c85a95ac13e40dab0bf71ddf33fc9ca654b34aca00518682a919b61cb37a12d2717f23d65b976b2ced374642e8d741843f8bfeb82
ripemd-160
6d63798641fc49e356b8780292726c89a56ede89
Diameter
162661302
Circumference
511015551.38655
Area
2.0780613732696E+16
Volume
2.2534677907463E+24
Surface area
8.3122454930784E+16
Circumference
511015551.38655
Perimeter
325322604
Area
6614674792083801
Diagonal
115018909.68083
Surface area
39688048752502806
Volume
5.3797580699347E+23
Space diagonal
140868819.74465
Perimeter
243991953
Area
2.8642382038586E+15
Altitude
70434409.872326
Surface area
2.8642382038586E+15
Volume
6.3401056873231E+22
Height
38339636.560278