20421208 is an even 8-digits composite number following 20421207
and preceding 20421209 . In scientific notation, it is written as 2.0421208 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 8 positive divisors.
There are 10210600 positive integers (up to 20421208) that are relatively prime to 20421208.
20421208 has 8 divisors, whose sum is 38289780
The reverse of 20421208 is 80212402
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million four hundred twenty-one thousand two hundred eight
Scientific notation
2.0421208 × 10^7
Engineering notation
2.0421208 × 10^6
Prime Factorization
2 × 2 × 2 × 2552651
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5105302
Product of the distinct prime numbers
The prime factorization of 20421208 is 2 × 2 × 2 × 2552651.
Since it has a total of 4 prime factors.
10 , 4 , 8 , 89 , 878 , 123 , 6649 , 4879 , 20492 , 7749 , 927904 , 478770 , 951421 , 4590723 , 98931686 , 16992946 , 678195041 , 704691567 , 2383870900 , 8843071213
n×2
40842416
n×3
61263624
n×4
81684832
n×5
102106040
n÷2
10210604
n÷3
6807069.3333333
n÷3
5105302
n÷5
4084241.6
n2
417025736179264
n3
8.5161692998699E+21
n4
1.7391046463586E+29
n5
3.5514617717055E+36
2 √n
4518.9830714443
3 √n
273.33409610469
4 √n
67.223381880446
5 √n
28.974522382995
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
-20421207
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 20421208 can be divided by 8 positive divisors.
The sum of these divisors (counting 20421208) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101111001101001011000
3
Ternary
1102102111122001
4
Quaternary
1031321221120
5
Quinary
20211434313
6
Senary
2005410344
8
Octal
115715130
10
Decimal
20421208
12
Duodecimal
6a099b4
16
Hexadecimal
1379a58
20
Vigesimal
67cd08
36
Base36
c5p3s
md5
cafee2f5de0c43b36027416439fd6840
sha1
bc0d825682e08a3367c41e506bac081cb5c0e979
sha256
1803ffafb7e8027bf16697699eabc89f705f574de2ed5bfa21b1ecf8535911f4
sha512
628b72f858362f9067c67f0badeb6e523e32fd8a1b6988859f81bfc9d0e55c5455212c3257ba2be154b205245148bec60fa319fa2d3860b0031ef15be91b077b
ripemd-160
e0c3a8b845a9c1e3a1bba5cfa150453b68ae5c58
Diameter
40842416
Circumference
128310234.06046
Area
1.3101249891387E+15
Volume
3.5672446545598E+22
Surface area
5.2404999565546E+15
Circumference
128310234.06046
Perimeter
81684832
Area
417025736179264
Diagonal
28879949.313642
Surface area
2502154417075584
Volume
8.5161692998699E+21
Space diagonal
35370569.807932
Perimeter
61263624
Area
1.8057744078157E+14
Altitude
17685284.903966
Surface area
1.8057744078157E+14
Volume
1.0036401769451E+21
Height
9626649.771214