12820145 is an odd 8-digits composite number following 12820144
and preceding 12820146 . In scientific notation, it is written as 1.2820145 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 9467136 positive integers (up to 12820145) that are relatively prime to 12820145.
12820145 has 8 divisors, whose sum is 16567656
The reverse of 12820145 is 54102821
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twelve million eight hundred twenty thousand one hundred forty-five
Scientific notation
1.2820145 × 10^7
Engineering notation
1.2820145 × 10^6
Prime Factorization
5 × 13 × 197233
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12820145
Product of the distinct prime numbers
The prime factorization of 12820145 is 5 × 13 × 197233.
Since it has a total of 3 prime factors.
9 , 3 , 89 , 90 , 666 , 908 , 3437 , 2045 , 43854 , 77297 , 449631 , 332238 , 5843702 , 6244832 , 68293236 , 67411435 , 734697199 , 583859841 , 4108886860 , 5801342426
n×2
25640290
n×3
38460435
n×4
51280580
n×5
64100725
n÷2
6410072.5
n÷3
4273381.6666667
n÷3
3205036.25
n÷5
2564029
n2
164356117821025
n3
2.1070692621026E+21
n4
2.7012933465199E+28
n5
3.463097238992E+35
2 √n
3580.5230064894
3 √n
234.04407210403
4 √n
59.837471591716
5 √n
26.398459705699
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
-12820144
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 12820145 can be divided by 8 positive divisors.
The sum of these divisors (counting 12820145) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111001111010110001
3
Ternary
220010022221012
4
Quaternary
300321322301
5
Quinary
11240221040
6
Senary
1134440305
8
Octal
60717261
10
Decimal
12820145
12
Duodecimal
4363095
16
Hexadecimal
c39eb1
20
Vigesimal
402a75
36
Base36
7ms35
md5
ae05fbc382420003232ddc408972de58
sha1
d6c2a5a66a6b898631be1c154feafa3ea35d7b71
sha256
efbf99cef0ae1f5fc422b9bcd5f62cc14fa8c89d6fccd17fe98a944b1cb2b830
sha512
87ae32ce04c7db64eb66b9f7510e390d4cb1775d4d26a76bd9a87aba0c03ce91ca995d1c8c7bbd40c757af15d3cbd9baf219fcea0e6d94a9202965b47e397028
ripemd-160
52f498cac7ea1b23354c035963766cce94863b40
Diameter
25640290
Circumference
80551346.699912
Area
5.1633997231907E+14
Volume
8.826071085902E+21
Surface area
2.0653598892763E+15
Circumference
80551346.699912
Perimeter
51280580
Area
164356117821025
Diagonal
18130422.93059
Surface area
986136706926150
Volume
2.1070692621026E+21
Space diagonal
22205142.5004
Perimeter
38460435
Area
71168286650198
Altitude
11102571.2502
Surface area
71168286650198
Volume
2.4832049394375E+20
Height
6043474.3101965