20421806 is an even 8-digits composite number following 20421805
and preceding 20421807 . In scientific notation, it is written as 2.0421806 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 10115368 positive integers (up to 20421806) that are relatively prime to 20421806.
20421806 has 8 divisors, whose sum is 30919320
The reverse of 20421806 is 60812402
Previous prime number is 107
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million four hundred twenty-one thousand eight hundred six
Scientific notation
2.0421806 × 10^7
Engineering notation
2.0421806 × 10^6
Prime Factorization
2 × 107 × 95429
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20421806
Product of the distinct prime numbers
The prime factorization of 20421806 is 2 × 107 × 95429.
Since it has a total of 3 prime factors.
6 , 9 , 92 , 94 , 924 , 457 , 2660 , 4476 , 57670 , 82234 , 133641 , 250994 , 9322788 , 8581628 , 98242011 , 6927509 , 923208776 , 585550687 , 7472817467 , 8415415540
n×2
40843612
n×3
61265418
n×4
81687224
n×5
102109030
n÷2
10210903
n÷3
6807268.6666667
n÷3
5105451.5
n÷5
4084361.2
n2
417050160301636
n3
8.5169174659489E+21
n4
1.7393083620762E+29
n5
3.5519817944498E+36
2 √n
4519.0492362885
3 √n
273.33676411848
4 √n
67.22387400536
5 √n
28.974692074831
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
-20421805
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 20421806 can be divided by 8 positive divisors.
The sum of these divisors (counting 20421806) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101111001110010101110
3
Ternary
1102102112110012
4
Quaternary
1031321302232
5
Quinary
20211444211
6
Senary
2005413222
8
Octal
115716256
10
Decimal
20421806
12
Duodecimal
6a0a212
16
Hexadecimal
1379cae
20
Vigesimal
67cea6
36
Base36
c5pke
md5
19e3c31da5a4c8a1a84dac8b2c7e8cce
sha1
d82b1898890993e8086001f5e997345cd55b58ce
sha256
f8446601daabf6016a792455233104229f40ab646b42841eef22ad94f18e83bd
sha512
29fd416c9a260a43c71eee85d8dbb56cd8fa82ef9e9d2bebc2bcd8ce69be6f884d24fb769cc81fedbafd4520cf3dccbb53ac3d0459ab355de8fd9096275ad74d
ripemd-160
b77188d1db12ef7e0aec3c08c7ecaf6bba487753
Diameter
40843612
Circumference
128313991.40527
Area
1.3102017197821E+15
Volume
3.5675580456341E+22
Surface area
5.2408068791283E+15
Circumference
128313991.40527
Perimeter
81687224
Area
417050160301636
Diagonal
28880795.013352
Surface area
2502300961809816
Volume
8.5169174659489E+21
Space diagonal
35371605.574315
Perimeter
61265418
Area
1.8058801673679E+14
Altitude
17685802.787157
Surface area
1.8058801673679E+14
Volume
1.0037283491631E+21
Height
9626931.6711174