20512209 is an odd 8-digits composite number following 20512208
and preceding 20512210 . In scientific notation, it is written as 2.0512209 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13613040 positive integers (up to 20512209) that are relatively prime to 20512209.
20512209 has 8 divisors, whose sum is 27473152
The reverse of 20512209 is 90221502
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million five hundred twelve thousand two hundred nine
Scientific notation
2.0512209 × 10^7
Engineering notation
2.0512209 × 10^6
Prime Factorization
3 × 223 × 30661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20512209
Product of the distinct prime numbers
The prime factorization of 20512209 is 3 × 223 × 30661.
Since it has a total of 3 prime factors.
3 , 10 , 1 , 97 , 558 , 640 , 9754 , 1539 , 33321 , 49397 , 367435 , 136701 , 8318952 , 8472255 , 71463129 , 51690083 , 90788216 , 481420931 , 2078347938 , 4953301371
n×2
41024418
n×3
61536627
n×4
82048836
n×5
102561045
n÷2
10256104.5
n÷3
6837403
n÷3
5128052.25
n÷5
4102441.8
n2
420750718059681
n3
8.6305266657403E+21
n4
1.7703116674774E+29
n5
3.6313002918434E+36
2 √n
4529.0406268878
3 √n
273.73950502915
4 √n
67.298147276784
5 √n
29.000299733229
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
-20512208
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 20512209 can be divided by 8 positive divisors.
The sum of these divisors (counting 20512209) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111110111010001
3
Ternary
1102121010110110
4
Quaternary
1032033313101
5
Quinary
20222342314
6
Senary
2011351533
8
Octal
116176721
10
Decimal
20512209
12
Duodecimal
6a525a9
16
Hexadecimal
138fdd1
20
Vigesimal
6840a9
36
Base36
c7nbl
md5
7e5bea4481e89c04fe5512acc9ab6239
sha1
77ff4bf59b02534b5c04e552ecb86d9a861ea532
sha256
1207b943a270f1d5925fdcf58322c2c0df3d07d7089232e69574717654e75e7c
sha512
108635fa4bcae7a2cde4c9a50a7b046fd13f5622fdc2916d94420e179fe9113078d62d764ae8a70211241aa45ab4ab94d534d86e2e9aedbff8e32fa5e31350f0
ripemd-160
ba7ddc1829be8fa59870f6b713c4a3bfaf071da3
Diameter
41024418
Circumference
128882010.2066
Area
1.3218273648489E+15
Volume
3.6151465559601E+22
Surface area
5.2873094593957E+15
Circumference
128882010.2066
Perimeter
82048836
Area
420750718059681
Diagonal
29008644.162031
Surface area
2524504308358086
Volume
8.6305266657403E+21
Space diagonal
35528188.163472
Perimeter
61536627
Area
1.8219040525011E+14
Altitude
17764094.081736
Surface area
1.8219040525011E+14
Volume
1.0171173217594E+21
Height
9669548.0540105