20018909 is an odd 8-digits prime number following 20018908
and preceding 20018910 . In scientific notation, it is written as 2.0018909 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 20018908 positive integers (up to 20018909) that are relatively prime to 20018909.
20018909 has 2 divisors, whose sum is 20018910
The reverse of 20018909 is 90981002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million eighteen thousand nine hundred nine
Scientific notation
2.0018909 × 10^7
Engineering notation
2.0018909 × 10^6
Prime Factorization
20018909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20018909
Product of the distinct prime numbers
The prime factorization of 20018909 is 20018909.
Since it has a total of 1 prime factors.
3 , 9 , 43 , 86 , 962 , 701 , 5842 , 6510 , 85308 , 99199 , 57770 , 28704 , 926623 , 1788806 , 78265601 , 85663119 , 361308395 , 442768823 , 2646606146 , 5296889674
n×2
40037818
n×3
60056727
n×4
80075636
n×5
100094545
n÷2
10009454.5
n÷3
6672969.6666667
n÷3
5004727.25
n÷5
4003781.8
n2
400756717550281
n3
8.0227122597778E+21
n4
1.6060594666168E+29
n5
3.2151558310789E+36
2 √n
4474.2495460133
3 √n
271.52727958536
4 √n
66.889831409664
5 √n
28.859452058467
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20018910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10009455
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4474.2496577639
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999000945
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20018909 can be divided by 2 positive divisors.
The sum of these divisors (counting 20018909) is 20018910, the average is 10009455.
Base
System
Value
2
Binary
1001100010111011011011101
3
Ternary
1101200001210002
4
Quaternary
1030113123131
5
Quinary
20111101114
6
Senary
1553024045
8
Octal
114273335
10
Decimal
20018909
12
Duodecimal
6855025
16
Hexadecimal
13176dd
20
Vigesimal
652759
36
Base36
bx2ot
md5
886bb53973299f6ab98f8cd6df8c1119
sha1
8e9dd765bbc7f83104c396ebdce52b49bac31804
sha256
84e91b028bdfc0e107f74d6849d3a35e8d753b93e11c304a181d5711988a0d60
sha512
32f05707f64492df6f265a37b73ab55c15ca089655eb5fc69bab294f87618b7089f5987752b1b84883cd9e8c037cd9be0e17bdbf88f88e591f08bef973b0211d
ripemd-160
7bdc9ffba5a2e02212afc6a81a7c2fcab43d5f92
Diameter
40037818
Circumference
125782514.89457
Area
1.2590143597327E+15
Volume
3.3605458529577E+22
Surface area
5.0360574389309E+15
Circumference
125782514.89457
Perimeter
80075636
Area
400756717550281
Diagonal
28311012.611713
Surface area
2404540305301686
Volume
8.0227122597778E+21
Space diagonal
34673767.500098
Perimeter
60056727
Area
1.735327490679E+14
Altitude
17336883.750049
Surface area
1.735327490679E+14
Volume
9.4548570706622E+20
Height
9437004.2039043