28130145 is an odd 8-digits composite number following 28130144
and preceding 28130146 . In scientific notation, it is written as 2.8130145 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14485184 positive integers (up to 28130145) that are relatively prime to 28130145.
28130145 has 8 divisors, whose sum is 37766112
The reverse of 28130145 is 54103182
Previous prime number is 145
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-eight million one hundred thirty thousand one hundred forty-five
Scientific notation
2.8130145 × 10^7
Engineering notation
2.8130145 × 10^6
Prime Factorization
3 × 145 × 64667
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28130145
Product of the distinct prime numbers
The prime factorization of 28130145 is 3 × 145 × 64667.
Since it has a total of 3 prime factors.
4 , 8 , 68 , 36 , 248 , 750 , 5690 , 2480 , 1254 , 3441 , 586184 , 478354 , 100792 , 561152 , 94777429 , 60603535 , 852462285 , 645998267 , 6861622863 , 9514468533
n×2
56260290
n×3
84390435
n×4
112520580
n×5
140650725
n÷2
14065072.5
n÷3
9376715
n÷3
7032536.25
n÷5
5626029
n2
791305057721025
n3
2.2259526012926E+22
n4
6.2616369437487E+29
n5
1.7614075516501E+37
2 √n
5303.7859119689
3 √n
304.1286426061
4 √n
72.827096001206
5 √n
30.891172609371
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
-28130144
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 28130145 can be divided by 8 positive divisors.
The sum of these divisors (counting 28130145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101011010011101101100001
3
Ternary
1221221011022020
4
Quaternary
1223103231201
5
Quinary
24200131040
6
Senary
2442532053
8
Octal
153235541
10
Decimal
28130145
12
Duodecimal
9507029
16
Hexadecimal
1ad3b61
20
Vigesimal
8fg575
36
Base36
gqxcx
md5
886ad9a4cf126f9122b2ded843079799
sha1
bb59cba63e42aded0e2b331b1f0e066c01c6248c
sha256
0c74fcdf7784343a60e1d608e4626de8c4cb46c4c95b08eb51f654cf112d521e
sha512
f38e1627283622e412c3e2fe07c703fa984ab6b2348d7f4a1c962fdf7869d93bc712718a9350b0c123eaae318da7e399c20d6d6b468622a283207f3cc27106b4
ripemd-160
de81fec2c233a7eb8778280d82ffe25ba75bfac6
Diameter
56260290
Circumference
176746913.75283
Area
2.4859581560848E+15
Volume
9.3240484526131E+22
Surface area
9.9438326243393E+15
Circumference
176746913.75283
Perimeter
112520580
Area
791305057721025
Diagonal
39782032.570522
Surface area
4747830346326150
Volume
2.2259526012926E+22
Space diagonal
48722840.36428
Perimeter
84390435
Area
3.4264514106476E+14
Altitude
24361420.18214
Surface area
3.4264514106476E+14
Volume
2.6233102982897E+21
Height
13260677.523507