20508908 is an even 8-digits composite number following 20508907
and preceding 20508909 . In scientific notation, it is written as 2.0508908 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 8789520 positive integers (up to 20508908) that are relatively prime to 20508908.
20508908 has 12 divisors, whose sum is 41017872
The reverse of 20508908 is 80980502
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million five hundred eight thousand nine hundred eight
Scientific notation
2.0508908 × 10^7
Engineering notation
2.0508908 × 10^6
Prime Factorization
2 × 2 × 7 × 732461
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10254454
Product of the distinct prime numbers
The prime factorization of 20508908 is 2 × 2 × 7 × 732461.
Since it has a total of 4 prime factors.
9 , 5 , 55 , 100 , 622 , 353 , 5263 , 8812 , 56827 , 29768 , 122023 , 940527 , 4260812 , 9376301 , 67974236 , 5976161 , 542391109 , 319617891 , 3508163116 , 6010208042
n×2
41017816
n×3
61526724
n×4
82035632
n×5
102544540
n÷2
10254454
n÷3
6836302.6666667
n÷3
5127227
n÷5
4101781.6
n2
420615307352464
n3
8.6263606418834E+21
n4
1.7691723677921E+29
n5
3.628379332719E+36
2 √n
4528.6761862602
3 √n
273.7248200744
4 √n
67.295439565101
5 √n
28.999366277916
1 , 2 , 4 , 7 , 14 , 28 , 732461 , 1464922 , 2929844 , 5127227 , 10254454 , 20508908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20508907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20508908 can be divided by 12 positive divisors.
The sum of these divisors (counting 20508908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110001111000011101100
3
Ternary
1102120221221012
4
Quaternary
1032033003230
5
Quinary
20222241113
6
Senary
2011324352
8
Octal
116170354
10
Decimal
20508908
12
Duodecimal
6a506b8
16
Hexadecimal
138f0ec
20
Vigesimal
683c58
36
Base36
c7krw
md5
82e42cb16be051fe59191821902fc4a2
sha1
62885abdebef185bb71d8fdbb473f2ccc4a5af5d
sha256
38e05119774fbc5821eb7d685c8ced618bd1de2d78729525b985c6cce4543513
sha512
e9caeb6490149f600ba3fe02637e15c85c8770137cb3a0356292a0473a5b201dbe88638675b8b30f318772b8a61f1bc49ef62cef766da09b12371843109d8645
ripemd-160
b0559ad70b261e09148f46284d1838f87e7ec8aa
Diameter
41017816
Circumference
128861269.4119
Area
1.3214019595659E+15
Volume
3.6134014959676E+22
Surface area
5.2856078382637E+15
Circumference
128861269.4119
Perimeter
82035632
Area
420615307352464
Diagonal
29003975.843062
Surface area
2523691844114784
Volume
8.6263606418834E+21
Space diagonal
35522470.663756
Perimeter
61526724
Area
1.8213177069392E+14
Altitude
17761235.331878
Surface area
1.8213177069392E+14
Volume
1.0166263511394E+21
Height
9667991.9476874