20421853 is an odd 8-digits composite number following 20421852
and preceding 20421854 . In scientific notation, it is written as 2.0421853 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20412700 positive integers (up to 20421853) that are relatively prime to 20421853.
20421853 has 4 divisors, whose sum is 20431008
The reverse of 20421853 is 35812402
Previous prime number is 3851
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million four hundred twenty-one thousand eight hundred fifty-three
Scientific notation
2.0421853 × 10^7
Engineering notation
2.0421853 × 10^6
Prime Factorization
3851 × 5303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20421853
Product of the distinct prime numbers
The prime factorization of 20421853 is 3851 × 5303.
Since it has a total of 2 prime factors.
1 , 8 , 62 , 33 , 132 , 826 , 1061 , 392 , 16443 , 86405 , 895838 , 999381 , 2806363 , 3988666 , 40157510 , 43943638 , 958813304 , 91504760 , 2899977037 , 3094630730
n×2
40843706
n×3
61265559
n×4
81687412
n×5
102109265
n÷2
10210926.5
n÷3
6807284.3333333
n÷3
5105463.25
n÷5
4084370.6
n2
417052079953609
n3
8.5169762701569E+21
n4
1.7393243739363E+29
n5
3.5520226683844E+36
2 √n
4519.0544364944
3 √n
273.33697380967
4 √n
67.223912683616
5 √n
28.974705411647
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
-20421852
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 20421853 can be divided by 4 positive divisors.
The sum of these divisors (counting 20421853) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111001110011011101
3
Ternary
1102102112111221
4
Quaternary
1031321303131
5
Quinary
20211444403
6
Senary
2005413341
8
Octal
115716335
10
Decimal
20421853
12
Duodecimal
6a0a251
16
Hexadecimal
1379cdd
20
Vigesimal
67cecd
36
Base36
c5plp
md5
547a0aa8742a8723f4268e9d4a540500
sha1
35b7a1a9d44517b94e65d92c5214a1ec1007f933
sha256
23e72e2f63559d6c48c7698967ceae37da113116061ff955fc335f939d17cb20
sha512
3655e72e4230933cb875801df6c32820f7046ad246115fb9e9547efb069490ef054767f49f6cf2be3743e3518b502785a03a4647e7ff6c188c089009eb058a7e
ripemd-160
5f85674febf98d6c91b65ceda0721306170d6c25
Diameter
40843706
Circumference
128314286.71498
Area
1.3102077505466E+15
Volume
3.5675826774831E+22
Surface area
5.2408310021864E+15
Circumference
128314286.71498
Perimeter
81687412
Area
417052079953609
Diagonal
28880861.48139
Surface area
2502312479721654
Volume
8.5169762701569E+21
Space diagonal
35371686.980703
Perimeter
61265559
Area
1.8058884797048E+14
Altitude
17685843.490351
Surface area
1.8058884797048E+14
Volume
1.0037352793055E+21
Height
9626953.8271299