20109721 is an odd 8-digits composite number following 20109720
and preceding 20109722 . In scientific notation, it is written as 2.0109721 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 19619200 positive integers (up to 20109721) that are relatively prime to 20109721.
20109721 has 4 divisors, whose sum is 20600244
The reverse of 20109721 is 12790102
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred nine thousand seven hundred twenty-one
Scientific notation
2.0109721 × 10^7
Engineering notation
2.0109721 × 10^6
Prime Factorization
41 × 490481
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20109721
Product of the distinct prime numbers
The prime factorization of 20109721 is 41 × 490481.
Since it has a total of 2 prime factors.
3 , 2 , 80 , 97 , 996 , 550 , 8080 , 3975 , 43107 , 29750 , 915003 , 466884 , 8801032 , 4560891 , 80547838 , 64608784 , 429431455 , 934968183 , 4002704689 , 2874783708
n×2
40219442
n×3
60329163
n×4
80438884
n×5
100548605
n÷2
10054860.5
n÷3
6703240.3333333
n÷3
5027430.25
n÷5
4021944.2
n2
404400878697841
n3
8.1323888427684E+21
n4
1.6354007069159E+29
n5
3.2887451939281E+36
2 √n
4484.3863571285
3 √n
271.93723771779
4 √n
66.965560978226
5 √n
28.885587768311
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
-20109720
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 20109721 can be divided by 4 positive divisors.
The sum of these divisors (counting 20109721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101101100110011001
3
Ternary
1101211200100111
4
Quaternary
1030231212121
5
Quinary
20122002341
6
Senary
1555004321
8
Octal
114554631
10
Decimal
20109721
12
Duodecimal
68996a1
16
Hexadecimal
132d999
20
Vigesimal
65de61
36
Base36
bz0rd
md5
d51696924da8cd4df9b81b0290c5aaa7
sha1
9a75a7216640af0ebf1b66927a7ae837262b5d8e
sha256
c3087522b0e78a09968147813a98c18fef1c617481b40afd0cb0ab48ccb2c1ad
sha512
7b05318b24ae05358df77f6d25dd8afe8be2b3347365db3b6f9ce90f26c5ac9c85eb9789dd4ca48c9d280d07a649dd45008e48c87fa5baf5e95f3c1b7d900240
ripemd-160
4e18e0711cd1a2c9babee642e35fcff2aba5e773
Diameter
40219442
Circumference
126353103.51868
Area
1.2704628296224E+15
Volume
3.4064870726103E+22
Surface area
5.0818513184896E+15
Circumference
126353103.51868
Perimeter
80438884
Area
404400878697841
Diagonal
28439440.173739
Surface area
2426405272187046
Volume
8.1323888427684E+21
Space diagonal
34831058.498035
Perimeter
60329163
Area
1.7511071713254E+14
Altitude
17415529.249017
Surface area
1.7511071713254E+14
Volume
9.584112163279E+20
Height
9479813.3912463