20311909 is an odd 8-digits composite number following 20311908
and preceding 20311910 . In scientific notation, it is written as 2.0311909 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20114604 positive integers (up to 20311909) that are relatively prime to 20311909.
20311909 has 4 divisors, whose sum is 20509216
The reverse of 20311909 is 90911302
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million three hundred eleven thousand nine hundred nine
Scientific notation
2.0311909 × 10^7
Engineering notation
2.0311909 × 10^6
Prime Factorization
103 × 197203
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20311909
Product of the distinct prime numbers
The prime factorization of 20311909 is 103 × 197203.
Since it has a total of 2 prime factors.
10 , 6 , 78 , 74 , 329 , 978 , 462 , 5163 , 94507 , 20972 , 175778 , 321415 , 4897849 , 3490877 , 16702428 , 57200711 , 116371594 , 171104901 , 7807353228 , 2241720041
n×2
40623818
n×3
60935727
n×4
81247636
n×5
101559545
n÷2
10155954.5
n÷3
6770636.3333333
n÷3
5077977.25
n÷5
4062381.8
n2
412573647224281
n3
8.3801583782177E+21
n4
1.7021701438395E+29
n5
3.4574325064184E+36
2 √n
4506.8735282899
3 √n
272.84557453164
4 √n
67.133252031239
5 √n
28.943440106784
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20311908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20311909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20311909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011110111101100101
3
Ternary
1102012221200221
4
Quaternary
1031132331211
5
Quinary
20144440114
6
Senary
2003204341
8
Octal
115367545
10
Decimal
20311909
12
Duodecimal
69766b1
16
Hexadecimal
135ef65
20
Vigesimal
66ijf9
36
Base36
c3crp
md5
6abe1d965dc5e055c2e1f0713aead9d6
sha1
c66581d9398ebf1538a9c8e67fe858ad370ab559
sha256
b3ab607b529414e5ec4f06d04c6137462e0ef5cb66a674b3184abbf98a67f02e
sha512
d3242880fa555bd634e325076fb7bedac73a4adb1a818a45ed70f222ca0ae6b521ff087eb82fcb3bf2b6479cf6527901803c1f0076645b6e7cfa98f333efea68
ripemd-160
e6636a0f3d51bc42f3814381f3428590bfe084e3
Diameter
40623818
Circumference
127623488.18957
Area
1.2961383391845E+15
Volume
3.5102725329237E+22
Surface area
5.1845533567382E+15
Circumference
127623488.18957
Perimeter
81247636
Area
412573647224281
Diagonal
28725377.185488
Surface area
2475441883345686
Volume
8.3801583782177E+21
Space diagonal
35181258.386716
Perimeter
60935727
Area
1.7864962971411E+14
Altitude
17590629.193358
Surface area
1.7864962971411E+14
Volume
9.8761113610917E+20
Height
9575125.728496