20129209 is an odd 8-digits composite number following 20129208
and preceding 20129210 . In scientific notation, it is written as 2.0129209 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 19254004 positive integers (up to 20129209) that are relatively prime to 20129209.
20129209 has 4 divisors, whose sum is 21004416
The reverse of 20129209 is 90292102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred twenty-nine thousand two hundred nine
Scientific notation
2.0129209 × 10^7
Engineering notation
2.0129209 × 10^6
Prime Factorization
23 × 875183
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20129209
Product of the distinct prime numbers
The prime factorization of 20129209 is 23 × 875183.
Since it has a total of 2 prime factors.
8 , 4 , 57 , 77 , 961 , 737 , 911 , 6050 , 7974 , 17437 , 428838 , 222154 , 4319403 , 3993022 , 93898075 , 78679512 , 534056273 , 259189805 , 673020582 , 9944946447
n×2
40258418
n×3
60387627
n×4
80516836
n×5
100646045
n÷2
10064604.5
n÷3
6709736.3333333
n÷3
5032302.25
n÷5
4025841.8
n2
405185054965681
n3
8.1560546550807E+21
n4
1.6417492876754E+29
n5
3.304711453722E+36
2 √n
4486.5587035054
3 √n
272.02505265928
4 √n
66.981778891766
5 √n
28.891184109043
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
-20129208
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 20129209 can be divided by 4 positive divisors.
The sum of these divisors (counting 20129209) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010010110111001
3
Ternary
1101212200002021
4
Quaternary
1030302112321
5
Quinary
20123113314
6
Senary
1555234441
8
Octal
114622671
10
Decimal
20129209
12
Duodecimal
68a8a21
16
Hexadecimal
13325b9
20
Vigesimal
65g309
36
Base36
bzfsp
md5
ce155c522415ba8cf59d741cc8413cb3
sha1
7a38866d8d6c552611b6bcb3f874e9d28c587f04
sha256
025939e493f4d5de3b648ddfbb5f83da0e050da726d2a4af71eeab43ea755561
sha512
c0fcb1c79d235f7fee10d2e5ab8d95edb5c8bfa8f21d2ebab81c02e0c8e8e17654d8d87b6d312a992fe096bca969fd7be00d0632edb552d18091544ae0ef53c1
ripemd-160
38b99653216fde1300207ff41eaf1a3b20628810
Diameter
40258418
Circumference
126475550.23395
Area
1.2729263920246E+15
Volume
3.4164001848904E+22
Surface area
5.0917055680982E+15
Circumference
126475550.23395
Perimeter
80516836
Area
405185054965681
Diagonal
28467000.367643
Surface area
2431110329794086
Volume
8.1560546550807E+21
Space diagonal
34864812.704173
Perimeter
60387627
Area
1.7545027541704E+14
Altitude
17432406.352086
Surface area
1.7545027541704E+14
Volume
9.6120025905594E+20
Height
9489000.1225475