20508906 is an even 8-digits composite number following 20508905
and preceding 20508907 . In scientific notation, it is written as 2.0508906 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6214800 positive integers (up to 20508906) that are relatively prime to 20508906.
20508906 has 16 divisors, whose sum is 44746848
The reverse of 20508906 is 60980502
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million five hundred eight thousand nine hundred six
Scientific notation
2.0508906 × 10^7
Engineering notation
2.0508906 × 10^6
Prime Factorization
2 × 3 × 11 × 310741
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20508906
Product of the distinct prime numbers
The prime factorization of 20508906 is 2 × 3 × 11 × 310741.
Since it has a total of 4 prime factors.
9 , 10 , 21 , 72 , 331 , 856 , 5928 , 575 , 41729 , 86000 , 5405 , 523750 , 5870725 , 6318601 , 77537704 , 10000950 , 316318480 , 959259130 , 5407805742 , 8728044109
n×2
41017812
n×3
61526718
n×4
82035624
n×5
102544530
n÷2
10254453
n÷3
6836302
n÷3
5127226.5
n÷5
4101781.2
n2
420615225316836
n3
8.6263581181918E+21
n4
1.7691716776833E+29
n5
3.628377563547E+36
2 √n
4528.6759654451
3 √n
273.72481117664
4 √n
67.295437924462
5 √n
28.999365712321
1 , 2 , 3 , 6 , 11 , 22 , 33 , 66 , 310741 , 621482 , 932223 , 1864446 , 3418151 , 6836302 , 10254453 , 20508906
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
-20508905
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 20508906 can be divided by 16 positive divisors.
The sum of these divisors (counting 20508906) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110001111000011101010
3
Ternary
1102120221221010
4
Quaternary
1032033003222
5
Quinary
20222241111
6
Senary
2011324350
8
Octal
116170352
10
Decimal
20508906
12
Duodecimal
6a506b6
16
Hexadecimal
138f0ea
20
Vigesimal
683c56
36
Base36
c7kru
md5
5131b016771d32e5567ca5d00a544519
sha1
241861db7ab5219c493011538e7278d272d93104
sha256
8417169437b54dc288f04bc26eaa0b57344c19adb934c9056bf674c051f140b4
sha512
f904f9bce5561a9b153c5da9b7167b67701f0a350ab0838b69802d96e8ecf7ed781f12fed9d2a2a670234272049c8c8e64fa1cd36baf8195e9a448941d5eb4ba
ripemd-160
c5b81995a52c0c89086ebf55baf6fc4d0a9e230e
Diameter
41017812
Circumference
128861256.84553
Area
1.3214017018434E+15
Volume
3.6134004388461E+22
Surface area
5.2856068073736E+15
Circumference
128861256.84553
Perimeter
82035624
Area
420615225316836
Diagonal
29003973.014635
Surface area
2523691351901016
Volume
8.6263581181918E+21
Space diagonal
35522467.199654
Perimeter
61526718
Area
1.8213173517145E+14
Altitude
17761233.599827
Surface area
1.8213173517145E+14
Volume
1.0166260537195E+21
Height
9667991.0048783