20123909 is an odd 8-digits composite number following 20123908
and preceding 20123910 . In scientific notation, it is written as 2.0123909 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18575904 positive integers (up to 20123909) that are relatively prime to 20123909.
20123909 has 4 divisors, whose sum is 21671916
The reverse of 20123909 is 90932102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred twenty-three thousand nine hundred nine
Scientific notation
2.0123909 × 10^7
Engineering notation
2.0123909 × 10^6
Prime Factorization
13 × 1547993
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123909
Product of the distinct prime numbers
The prime factorization of 20123909 is 13 × 1547993.
Since it has a total of 2 prime factors.
10 , 4 , 61 , 28 , 31 , 27 , 2091 , 5149 , 80894 , 3004 , 651736 , 942769 , 5439694 , 4199990 , 27346818 , 57798125 , 666190994 , 114486583 , 6150041424 , 2873762859
n×2
40247818
n×3
60371727
n×4
80495636
n×5
100619545
n÷2
10061954.5
n÷3
6707969.6666667
n÷3
5030977.25
n÷5
4024781.8
n2
404971713440281
n3
8.1496139088463E+21
n4
1.6400208868676E+29
n5
3.3003631085422E+36
2 √n
4485.9680114776
3 √n
272.00117592485
4 √n
66.977369398011
5 √n
28.88966254498
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
-20123908
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 20123909 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000100000101
3
Ternary
1101212101210222
4
Quaternary
1030301010011
5
Quinary
20122431114
6
Senary
1555154125
8
Octal
114610405
10
Decimal
20123909
12
Duodecimal
68a5945
16
Hexadecimal
1331105
20
Vigesimal
65f9f9
36
Base36
bzbph
md5
39827f37c4ca4055cdf8a5246fbfb6b9
sha1
be4ea5d40c9f34fac0f5d0b8ab83916a0bc75842
sha256
ceeef9a8690877ef5e6f058cad3e0f49149cedaa5ccbd54577d616d402b41256
sha512
68ac0946230a8c735b38f0494d611c6793696ee3a1d3f0ce79bff3921eca640933029365cc83687d4c9a0b1142a357d349c831320fa2e4f9f6f2bcf6a4e4ebf3
ripemd-160
4364a35d150737aa9412fe9933bfa4562e6de937
Diameter
40247818
Circumference
126442249.35182
Area
1.2722561598557E+15
Volume
3.4137022914166E+22
Surface area
5.0890246394226E+15
Circumference
126442249.35182
Perimeter
80495636
Area
404971713440281
Diagonal
28459505.035762
Surface area
2429830280641686
Volume
8.1496139088463E+21
Space diagonal
34855632.834893
Perimeter
60371727
Area
1.753578958267E+14
Altitude
17427816.417446
Surface area
1.753578958267E+14
Volume
9.604412098329E+20
Height
9486501.6785873