20508918 is an even 8-digits composite number following 20508917
and preceding 20508919 . In scientific notation, it is written as 2.0508918 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 6518400 positive integers (up to 20508918) that are relatively prime to 20508918.
20508918 has 32 divisors, whose sum is 42964992
The reverse of 20508918 is 81980502
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million five hundred eight thousand nine hundred eighteen
Scientific notation
2.0508918 × 10^7
Engineering notation
2.0508918 × 10^6
Prime Factorization
2 × 3 × 71 × 31 × 1553
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20508918
Product of the distinct prime numbers
The prime factorization of 20508918 is 2 × 3 × 71 × 31 × 1553.
Since it has a total of 5 prime factors.
10 , 4 , 69 , 72 , 858 , 972 , 7315 , 1038 , 10136 , 10424 , 259992 , 730704 , 5709740 , 6151808 , 90233226 , 32634102 , 885462208 , 349597944 , 3133596843 , 2719461628
n×2
41017836
n×3
61526754
n×4
82035672
n×5
102544590
n÷2
10254459
n÷3
6836306
n÷3
5127229.5
n÷5
4101783.6
n2
420615717530724
n3
8.6263732603488E+21
n4
1.7691758183389E+29
n5
3.6283881785895E+36
2 √n
4528.6772903354
3 √n
273.72486456316
4 √n
67.295447768296
5 √n
28.999369105893
1 , 2 , 3 , 6 , 31 , 62 , 71 , 93 , 142 , 186 , 213 , 426 , 1553 , 2201 , 3106 , 4402 , 4659 , 6603 , 9318 , 13206 , 48143 , 96286 , 110263 , 144429 , 220526 , 288858 , 330789 , 661578 , 3418153 , 6836306 , 10254459 , 20508918
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20508917
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20508918 can be divided by 32 positive divisors.
The sum of these divisors (counting 20508918) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110001111000011110110
3
Ternary
1102120221221120
4
Quaternary
1032033003312
5
Quinary
20222241133
6
Senary
2011324410
8
Octal
116170366
10
Decimal
20508918
12
Duodecimal
6a50706
16
Hexadecimal
138f0f6
20
Vigesimal
683c5i
36
Base36
c7ks6
md5
110c7b08fb90b9ae47343f5f6a82b921
sha1
1a783e3fa74616a8fbc12bc3e08ee51415866dbb
sha256
4fa3d933e601e3249145865281375b5032eed9a73331180d01049fdaf38e0ed6
sha512
e8cf76672699f595478cae7859294088df3e75b55f02037ea6d43711b712150b10320b05b1ecb9ec61bc5bb5322f9dce24a3f90e60b79c84769d64af276c2108
ripemd-160
ac86ee1e33155cb600173a4eef3ae2b053d7f950
Diameter
41017836
Circumference
128861332.24375
Area
1.3214032481789E+15
Volume
3.613406781578E+22
Surface area
5.2856129927157E+15
Circumference
128861332.24375
Perimeter
82035672
Area
420615717530724
Diagonal
29003989.985198
Surface area
2523694305184344
Volume
8.6263732603488E+21
Space diagonal
35522487.984264
Perimeter
61526754
Area
1.8213194830631E+14
Altitude
17761243.992132
Surface area
1.8213194830631E+14
Volume
1.0166278382398E+21
Height
9667996.6617326