21003820 is an even 8-digits composite number following 21003819
and preceding 21003821 . In scientific notation, it is written as 2.1003820 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 12 positive divisors.
There are 8401520 positive integers (up to 21003820) that are relatively prime to 21003820.
21003820 has 12 divisors, whose sum is 44108064
The reverse of 21003820 is 02830012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million three thousand eight hundred twenty
Scientific notation
2.1003820 × 10^7
Engineering notation
2.1003820 × 10^6
Prime Factorization
2 × 2 × 5 × 1050191
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10501910
Product of the distinct prime numbers
The prime factorization of 21003820 is 2 × 2 × 5 × 1050191.
Since it has a total of 4 prime factors.
1 , 2 , 6 , 43 , 300 , 108 , 645 , 3040 , 10356 , 34040 , 49529 , 577168 , 2438787 , 8095755 , 53164116 , 24433132 , 358961174 , 386106342 , 2493732553 , 9369540345
n×2
42007640
n×3
63011460
n×4
84015280
n×5
105019100
n÷2
10501910
n÷3
7001273.3333333
n÷3
5250955
n÷5
4200764
n2
441160454592400
n3
9.2660547793769E+21
n4
1.9462254669617E+29
n5
4.087816938748E+36
2 √n
4582.9924721736
3 √n
275.90914533872
4 √n
67.697802565324
5 √n
29.13799453807
1 , 2 , 4 , 5 , 10 , 20 , 1050191 , 2100382 , 4200764 , 5250955 , 10501910 , 21003820
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21003819
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21003820 can be divided by 12 positive divisors.
The sum of these divisors (counting 21003820) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000000111111000101100
3
Ternary
1110112002211021
4
Quaternary
1100013320230
5
Quinary
20334110240
6
Senary
2030103524
8
Octal
120077054
10
Decimal
21003820
12
Duodecimal
704aba4
16
Hexadecimal
1407e2c
20
Vigesimal
6b59b0
36
Base36
ci6ng
md5
d11e3272acd142763c1e9e621250615b
sha1
48c4e56e19bad2941d33d7a3dc6c087ce34e85b3
sha256
ff05a2f0c8a1c7e7da1ea0e48b40130f4d094f872b248bf8d97f59059e650e88
sha512
cd9965e921ad12fa5f5c3c2c9c1fc77683594efaf3c1c2107f76d03836beec5e2adf83bb85db51872942573e6ff8d18cf17287bd7c1992dbfe354edeb75e602e
ripemd-160
359668fa4ede2f96ed924be9ef633fcca971942a
Diameter
42007640
Circumference
131970893.21864
Area
1.3859464432018E+15
Volume
3.8813559496868E+22
Surface area
5.5437857728073E+15
Circumference
131970893.21864
Perimeter
84015280
Area
441160454592400
Diagonal
29703887.105643
Surface area
2646962727554400
Volume
9.2660547793769E+21
Space diagonal
36379683.393031
Perimeter
63011460
Area
1.9102808041105E+14
Altitude
18189841.696516
Surface area
1.9102808041105E+14
Volume
1.0920150282239E+21
Height
9901295.7018811