20421851 is an odd 8-digits composite number following 20421850
and preceding 20421852 . In scientific notation, it is written as 2.0421851 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20192304 positive integers (up to 20421851) that are relatively prime to 20421851.
20421851 has 4 divisors, whose sum is 20651400
The reverse of 20421851 is 15812402
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred twenty-one thousand eight hundred fifty-one
Scientific notation
2.0421851 × 10^7
Engineering notation
2.0421851 × 10^6
Prime Factorization
89 × 229459
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20421851
Product of the distinct prime numbers
The prime factorization of 20421851 is 89 × 229459.
Since it has a total of 2 prime factors.
3 , 9 , 70 , 29 , 324 , 976 , 2006 , 9800 , 97994 , 5102 , 99874 , 703699 , 6870982 , 3046099 , 84215343 , 50798282 , 409959716 , 731434356 , 2792071944 , 6520183014
n×2
40843702
n×3
61265553
n×4
81687404
n×5
102109255
n÷2
10210925.5
n÷3
6807283.6666667
n÷3
5105462.75
n÷5
4084370.2
n2
417051998266201
n3
8.5169737678446E+21
n4
1.7393236925783E+29
n5
3.5520209290604E+36
2 √n
4519.0542152092
3 √n
273.33696488664
4 √n
67.223911037734
5 √n
28.974704844123
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
-20421850
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 20421851 can be divided by 4 positive divisors.
The sum of these divisors (counting 20421851) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101111001110011011011
3
Ternary
1102102112111212
4
Quaternary
1031321303123
5
Quinary
20211444401
6
Senary
2005413335
8
Octal
115716333
10
Decimal
20421851
12
Duodecimal
6a0a24b
16
Hexadecimal
1379cdb
20
Vigesimal
67cecb
36
Base36
c5pln
md5
e9ea57dfb5791c970210f6699eb2db75
sha1
67a238e6bee12aa869c4da37d4b8901f8f444fee
sha256
7ef5c1507d66257cdf2c3a1a517df8cb9cab8f9f593ad4e556d720cd9f5fb07a
sha512
aba90be01480ff1521a3cd4104768a2b2c62193506490d8267a244c8c797d8449bb699284cd5ddb35250d12de99227a157c7865810b66f7555fde952c60181f4
ripemd-160
1e83b61e11fe0ff2e97e5ef7e16125e51f45467e
Diameter
40843702
Circumference
128314274.14861
Area
1.310207493918E+15
Volume
3.567581629317E+22
Surface area
5.2408299756722E+15
Circumference
128314274.14861
Perimeter
81687404
Area
417051998266201
Diagonal
28880858.652963
Surface area
2502311989597206
Volume
8.5169737678446E+21
Space diagonal
35371683.516601
Perimeter
61265553
Area
1.805888125988E+14
Altitude
17685841.758301
Surface area
1.805888125988E+14
Volume
1.0037349844051E+21
Height
9626952.8843209