20530145 is an odd 8-digits composite number following 20530144
and preceding 20530146 . In scientific notation, it is written as 2.0530145 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 15601344 positive integers (up to 20530145) that are relatively prime to 20530145.
20530145 has 16 divisors, whose sum is 25885440
The reverse of 20530145 is 54103502
Previous prime number is 167
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million five hundred thirty thousand one hundred forty-five
Scientific notation
2.0530145 × 10^7
Engineering notation
2.0530145 × 10^6
Prime Factorization
5 × 23 × 167 × 1069
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20530145
Product of the distinct prime numbers
The prime factorization of 20530145 is 5 × 23 × 167 × 1069.
Since it has a total of 4 prime factors.
5 , 7 , 63 , 60 , 598 , 606 , 881 , 5636 , 9101 , 99950 , 317633 , 501774 , 7648659 , 7382082 , 9152795 , 44582472 , 983054099 , 293230275 , 1725908220 , 6985856834
n×2
41060290
n×3
61590435
n×4
82120580
n×5
102650725
n÷2
10265072.5
n÷3
6843381.6666667
n÷3
5132536.25
n÷5
4106029
n2
421486853721025
n3
8.6531862224864E+21
n4
1.7765116785965E+29
n5
3.6472042355779E+36
2 √n
4531.020304523
3 √n
273.81926827984
4 √n
67.312853932388
5 √n
29.005369567908
1 , 5 , 23 , 115 , 167 , 835 , 1069 , 3841 , 5345 , 19205 , 24587 , 122935 , 178523 , 892615 , 4106029 , 20530145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20530144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20530145 can be divided by 16 positive divisors.
The sum of these divisors (counting 20530145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110010100001111100001
3
Ternary
1102122001001202
4
Quaternary
1032110033201
5
Quinary
20223431040
6
Senary
2012010545
8
Octal
116241741
10
Decimal
20530145
12
Duodecimal
6a60a55
16
Hexadecimal
13943e1
20
Vigesimal
686575
36
Base36
c815t
md5
c2e16356ca1edf832414cf202b7bec73
sha1
f15610b91b33a346837d040964af30c1f2d828c6
sha256
904153774b4ac6bb827df3ab4c80940c915ed175f698c5c3d21719399afcc740
sha512
5ab639bf963773016b4c0ca5da5326165924f2ef718249c1736db83ef600a18e6e5da4f9dbfe3a08e784039ac47dd6641a8ee5e49b962d583a5425d413997daa
ripemd-160
e5f1272bd83394ae45174c53b828b6c5831d7efa
Diameter
41060290
Circumference
128994705.41827
Area
1.3241400032346E+15
Volume
3.6246381688944E+22
Surface area
5.2965600129386E+15
Circumference
128994705.41827
Perimeter
82120580
Area
421486853721025
Diagonal
29034009.496486
Surface area
2528921122326150
Volume
8.6531862224864E+21
Space diagonal
35559254.226756
Perimeter
61590435
Area
1.8250916134179E+14
Altitude
17779627.113378
Surface area
1.8250916134179E+14
Volume
1.0197877761317E+21
Height
9678003.1654954