20219721 is an odd 8-digits composite number following 20219720
and preceding 20219722 . In scientific notation, it is written as 2.0219721 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13401552 positive integers (up to 20219721) that are relatively prime to 20219721.
20219721 has 8 divisors, whose sum is 27116160
The reverse of 20219721 is 12791202
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million two hundred nineteen thousand seven hundred twenty-one
Scientific notation
2.0219721 × 10^7
Engineering notation
2.0219721 × 10^6
Prime Factorization
3 × 173 × 38959
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20219721
Product of the distinct prime numbers
The prime factorization of 20219721 is 3 × 173 × 38959.
Since it has a total of 3 prime factors.
9 , 6 , 22 , 81 , 142 , 833 , 2389 , 5007 , 67586 , 47274 , 708420 , 812635 , 7469816 , 2328766 , 97764816 , 24664903 , 146518885 , 633011980 , 4698810145 , 7005527445
n×2
40439442
n×3
60659163
n×4
80878884
n×5
101098605
n÷2
10109860.5
n÷3
6739907
n÷3
5054930.25
n÷5
4043944.2
n2
408837117317841
n3
8.266572446611E+21
n4
1.6714778849676E+29
n5
3.3796816491715E+36
2 √n
4496.6344080879
3 √n
272.43216783696
4 √n
67.056948991793
5 √n
28.917119635036
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
-20219720
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 20219721 can be divided by 8 positive divisors.
The sum of these divisors (counting 20219721) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000011101001001
3
Ternary
1102001021020120
4
Quaternary
1031020131021
5
Quinary
20134012341
6
Senary
2001213453
8
Octal
115103511
10
Decimal
20219721
12
Duodecimal
6931289
16
Hexadecimal
1348749
20
Vigesimal
667961
36
Base36
c1dmx
md5
24a4165d524f074cc34ca9fc02a02e8d
sha1
5a395733bd7dc07ca5f9278a2c32879ed005e20e
sha256
04a72b630692019bc3a7cf8cf4d675b0505376efe9c5dcd3484e39d5c086bd35
sha512
29f2f5390d42a4723dd3ba6bcbd822031e4425f44ca152a5def66d49c46fd8fcfe556e6122366da75f5acdab15dc5f5a6d1bf2ada63618655186f97061f5c514
ripemd-160
953b8e32b46ebe20ec0c2efe3900465e14b9fd88
Diameter
40439442
Circumference
127044253.90247
Area
1.2843996842806E+15
Volume
3.4626937691521E+22
Surface area
5.1375987371222E+15
Circumference
127044253.90247
Perimeter
80878884
Area
408837117317841
Diagonal
28595003.6656
Surface area
2453022703907046
Volume
8.266572446611E+21
Space diagonal
35021584.086867
Perimeter
60659163
Area
1.7703166480362E+14
Altitude
17510792.043434
Surface area
1.7703166480362E+14
Volume
9.7422490569475E+20
Height
9531667.8885334