20421919 is an odd 8-digits composite number following 20421918
and preceding 20421920 . In scientific notation, it is written as 2.0421919 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 17483256 positive integers (up to 20421919) that are relatively prime to 20421919.
20421919 has 8 divisors, whose sum is 23367680
The reverse of 20421919 is 91912402
Previous prime number is 1303
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million four hundred twenty-one thousand nine hundred nineteen
Scientific notation
2.0421919 × 10^7
Engineering notation
2.0421919 × 10^6
Prime Factorization
7 × 1303 × 2239
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20421919
Product of the distinct prime numbers
The prime factorization of 20421919 is 7 × 1303 × 2239.
Since it has a total of 3 prime factors.
6 , 2 , 29 , 64 , 678 , 291 , 8099 , 7777 , 47847 , 65666 , 891507 , 827383 , 2698551 , 197226 , 14009729 , 78498875 , 718344907 , 719591561 , 9030104756 , 4607703598
n×2
40843838
n×3
61265757
n×4
81687676
n×5
102109595
n÷2
10210959.5
n÷3
6807306.3333333
n÷3
5105479.75
n÷5
4084383.8
n2
417054775642561
n3
8.5170588467356E+21
n4
1.7393468588627E+29
n5
3.5520800664598E+36
2 √n
4519.0617389011
3 √n
273.33726826908
4 √n
67.22396699765
5 √n
28.974724139899
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
-20421918
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 20421919 can be divided by 8 positive divisors.
The sum of these divisors (counting 20421919) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101111001110100011111
3
Ternary
1102102112121101
4
Quaternary
1031321310133
5
Quinary
20212000134
6
Senary
2005413531
8
Octal
115716437
10
Decimal
20421919
12
Duodecimal
6a0a2a7
16
Hexadecimal
1379d1f
20
Vigesimal
67cefj
36
Base36
c5pnj
md5
af29b91e77117eb1ee1b6472d5bee700
sha1
ba63497559133d24171f8a199c67eb0d6e39433c
sha256
ed5d5862283a68ec102e0024a3e4c91837bbd77395275a8bd4fb99676311fadb
sha512
f4c2de713a672c86129f46c357f0a5acadba641c369e68d8247afbe1b3ea705862579731de6da353c076b12beab2b1640586a8ec74d28fe8ca93bcf69f588553
ripemd-160
cffd0fda512a7766098512df852e556bbf4afa99
Diameter
40843838
Circumference
128314701.40521
Area
1.3102162193032E+15
Volume
3.5676172670795E+22
Surface area
5.2408648772128E+15
Circumference
128314701.40521
Perimeter
81687676
Area
417054775642561
Diagonal
28880954.819485
Surface area
2502328653855366
Volume
8.5170588467356E+21
Space diagonal
35371801.296056
Perimeter
61265757
Area
1.8059001523804E+14
Altitude
17685900.648028
Surface area
1.8059001523804E+14
Volume
1.0037450110486E+21
Height
9626984.9398283