20508979 is an odd 8-digits composite number following 20508978
and preceding 20508980 . In scientific notation, it is written as 2.0508979 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 19541760 positive integers (up to 20508979) that are relatively prime to 20508979.
20508979 has 8 divisors, whose sum is 21499632
The reverse of 20508979 is 97980502
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million five hundred eight thousand nine hundred seventy-nine
Scientific notation
2.0508979 × 10^7
Engineering notation
2.0508979 × 10^6
Prime Factorization
43 × 41 × 11633
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20508979
Product of the distinct prime numbers
The prime factorization of 20508979 is 43 × 41 × 11633.
Since it has a total of 3 prime factors.
6 , 10 , 61 , 20 , 283 , 927 , 1948 , 2557 , 24538 , 8210 , 170476 , 955881 , 3940310 , 4812100 , 60565941 , 43096224 , 218408139 , 446477342 , 6835350121 , 5719895455
n×2
41017958
n×3
61526937
n×4
82035916
n×5
102544895
n÷2
10254489.5
n÷3
6836326.3333333
n÷3
5127244.75
n÷5
4101795.8
n2
420618219622441
n3
8.626450233254E+21
n4
1.7691968667835E+29
n5
3.6284421387729E+36
2 √n
4528.6840251888
3 √n
273.72513594429
4 √n
67.295497807719
5 √n
28.99938635653
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
-20508978
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 20508979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20508979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111000100110011
3
Ternary
1102120222000211
4
Quaternary
1032033010303
5
Quinary
20222241404
6
Senary
2011324551
8
Octal
116170463
10
Decimal
20508979
12
Duodecimal
6a50757
16
Hexadecimal
138f133
20
Vigesimal
683c8j
36
Base36
c7ktv
md5
96f839797a979a618044e485ec2639ee
sha1
11c41de50c9db4f5f5f8f80df4f6831629b6f815
sha256
b7dcf06d3860cc0cfa76b3fbb3337a093dcef58b8ca84c6e46c3f02713103da7
sha512
dcb7ac1c7997b903f839ce18b061f7b05ec2157f91fbe6b9a3939aecd15f60093111166b811bd664cf9f5493e9ccb2a2f8aef67d57dc3dd04d7fbf7636fa2924
ripemd-160
dcd606702ad4a8ccb1946026560a39ebafba98ae
Diameter
41017958
Circumference
128861715.51805
Area
1.3214111087319E+15
Volume
3.6134390239132E+22
Surface area
5.2856444349275E+15
Circumference
128861715.51805
Perimeter
82035916
Area
420618219622441
Diagonal
29004076.252225
Surface area
2523709317734646
Volume
8.626450233254E+21
Space diagonal
35522593.639363
Perimeter
61526937
Area
1.8213303174381E+14
Altitude
17761296.819682
Surface area
1.8213303174381E+14
Volume
1.0166369095837E+21
Height
9668025.4174083