28402009 is an odd 8-digits composite number following 28402008
and preceding 28402010 . In scientific notation, it is written as 2.8402009 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 28197540 positive integers (up to 28402009) that are relatively prime to 28402009.
28402009 has 4 divisors, whose sum is 28606480
The reverse of 28402009 is 90020482
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-eight million four hundred two thousand nine
Scientific notation
2.8402009 × 10^7
Engineering notation
2.8402009 × 10^6
Prime Factorization
139 × 204331
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28402009
Product of the distinct prime numbers
The prime factorization of 28402009 is 139 × 204331.
Since it has a total of 2 prime factors.
1 , 2 , 78 , 57 , 409 , 524 , 5400 , 5860 , 51294 , 36488 , 764599 , 668869 , 8505812 , 4105548 , 9782173 , 36586749 , 229226889 , 642255418 , 3569957331 , 1756555888
n×2
56804018
n×3
85206027
n×4
113608036
n×5
142010045
n÷2
14201004.5
n÷3
9467336.3333333
n÷3
7100502.25
n÷5
5680401.8
n2
806674115236081
n3
2.2911165481002E+22
n4
6.5072312819191E+29
n5
1.8481844143415E+37
2 √n
5329.3535255226
3 √n
305.1052543654
4 √n
73.002421367531
5 √n
30.9506527078
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
-28402008
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 28402009 can be divided by 4 positive divisors.
The sum of these divisors (counting 28402009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010110000101011001
3
Ternary
1222102222020021
4
Quaternary
1230112011121
5
Quinary
24232331014
6
Senary
2452430441
8
Octal
154260531
10
Decimal
28402009
12
Duodecimal
9618421
16
Hexadecimal
1b16159
20
Vigesimal
8ha509
36
Base36
gwr4p
md5
217fc7ee39e77b5bdc0b00a85b21f7ad
sha1
f3d101160fb0878eb38cc6fd68132e61e9f4d70b
sha256
5f9703173a150db2ea1f4e82584cba911c7c1a64c888e66d59d269445b10dcad
sha512
76c6988c6b383407d700c05f58d7a2cf9e5f4e8b615beb7bd4d37cceab888d58557942ed8eed164ee595c55c5fd3590a25ff10d07476efd0b40d1edfadc2365b
ripemd-160
038013779ae21a55e83409fe2a7ef7a5f22abe49
Diameter
56804018
Circumference
178455085.64318
Area
2.5342414742667E+15
Volume
9.5970065547062E+22
Surface area
1.0136965897067E+16
Circumference
178455085.64318
Perimeter
113608036
Area
806674115236081
Diagonal
40166506.326443
Surface area
4840044691416486
Volume
2.2911165481002E+22
Space diagonal
49193722.625029
Perimeter
85206027
Area
3.4930013818489E+14
Altitude
24596861.312514
Surface area
3.4930013818489E+14
Volume
2.700106746084E+21
Height
13388835.442148