20421943 is an odd 8-digits composite number following 20421942
and preceding 20421944 . In scientific notation, it is written as 2.0421943 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 20055000 positive integers (up to 20421943) that are relatively prime to 20421943.
20421943 has 8 divisors, whose sum is 20791296
The reverse of 20421943 is 34912402
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred twenty-one thousand nine hundred forty-three
Scientific notation
2.0421943 × 10^7
Engineering notation
2.0421943 × 10^6
Prime Factorization
71 × 383 × 751
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20421943
Product of the distinct prime numbers
The prime factorization of 20421943 is 71 × 383 × 751.
Since it has a total of 3 prime factors.
4 , 1 , 60 , 24 , 829 , 277 , 2932 , 4968 , 1359 , 42228 , 839189 , 634993 , 5853559 , 8482513 , 81511130 , 21164402 , 597907378 , 516763300 , 2520666949 , 1268987560
n×2
40843886
n×3
61265829
n×4
81687772
n×5
102109715
n÷2
10210971.5
n÷3
6807314.3333333
n÷3
5105485.75
n÷5
4084388.6
n2
417055755895249
n3
8.5170888747147E+21
n4
1.7393550352536E+29
n5
3.5521009386712E+36
2 √n
4519.0643943188
3 √n
273.33737534508
4 √n
67.223986748175
5 √n
28.974730950161
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
-20421942
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 20421943 can be divided by 8 positive divisors.
The sum of these divisors (counting 20421943) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101111001110100110111
3
Ternary
1102102112122021
4
Quaternary
1031321310313
5
Quinary
20212000233
6
Senary
2005414011
8
Octal
115716467
10
Decimal
20421943
12
Duodecimal
6a0a307
16
Hexadecimal
1379d37
20
Vigesimal
67ceh3
36
Base36
c5po7
md5
5d9536cbfdcc01040aba8fe847bb0888
sha1
59602f6709d9afbdacb5a583dd296e1f578c247a
sha256
5218ec0026b118c5c639581bef49f86d789daa331a1febabb849cdace56f88b5
sha512
f70171e3fb4cce2934249a69d5bc88ca99f62fba14ff140abbb27d1f6dbc85e6081c050b77f6dab2554a2e008f0a4fdf9fbd15c0b199b326c9042354344e8a97
ripemd-160
458d61f2ca1d527d0b243f8e910714ae5dadf4ee
Diameter
40843886
Circumference
128314852.20166
Area
1.3102192988579E+15
Volume
3.56762984517E+22
Surface area
5.2408771954314E+15
Circumference
128314852.20166
Perimeter
81687772
Area
417055755895249
Diagonal
28880988.76061
Surface area
2502334535371494
Volume
8.5170888747147E+21
Space diagonal
35371842.865276
Perimeter
61265829
Area
1.805904396999E+14
Altitude
17685921.432638
Surface area
1.805904396999E+14
Volume
1.0037485498799E+21
Height
9626996.2535368