21809963 is an odd 8-digits composite number following 21809962
and preceding 21809964 . In scientific notation, it is written as 2.1809963 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 17592960 positive integers (up to 21809963) that are relatively prime to 21809963.
21809963 has 12 divisors, whose sum is 26480592
The reverse of 21809963 is 36990812
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million eight hundred nine thousand nine hundred sixty-three
Scientific notation
2.1809963 × 10^7
Engineering notation
2.1809963 × 10^6
Prime Factorization
17 × 7 × 17 × 10781
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1282939
Product of the distinct prime numbers
The prime factorization of 21809963 is 17 × 7 × 17 × 10781.
Since it has a total of 4 prime factors.
10 , 4 , 54 , 11 , 48 , 190 , 4518 , 7063 , 68176 , 18755 , 699919 , 909884 , 8692719 , 3555348 , 13612114 , 28976569 , 391655651 , 621901079 , 988744914 , 1198499170
n×2
43619926
n×3
65429889
n×4
87239852
n×5
109049815
n÷2
10904981.5
n÷3
7269987.6666667
n÷3
5452490.75
n÷5
4361992.6
n2
475674486061369
n3
1.0374442941042E+22
n4
2.2626621668975E+29
n5
4.9348578141534E+36
2 √n
4670.1138101764
3 √n
279.39479401049
4 √n
68.338230955859
5 √n
29.35830552461
1 , 7 , 17 , 119 , 289 , 2023 , 10781 , 75467 , 183277 , 1282939 , 3115709 , 21809963
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
-21809962
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 21809963 can be divided by 12 positive divisors.
The sum of these divisors (counting 21809963) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011001100101100101011
3
Ternary
1112001001122102
4
Quaternary
1103030230223
5
Quinary
21040404323
6
Senary
2055244015
8
Octal
123145453
10
Decimal
21809963
12
Duodecimal
737960b
16
Hexadecimal
14ccb2b
20
Vigesimal
6g64i3
36
Base36
czgob
md5
9c9a5f2deae34b56524f4a0a642cac58
sha1
84641772e0357c0e86b63a36ad006895bdbf641d
sha256
631b934a1f1b366c189903b178fbc2acfa615a1fa15fd15c3189b2a49b88f4f1
sha512
6ff49a57ffd4b44bcddf44831fc7852b7f8bf7cc8f91406a5b8e12f0280055fa9a2584d3f702946cd30a0c2eac12d7c13a3e3d9fbab848cbd941162481174c94
ripemd-160
3401d3743c683244b7fdd586a087842d54d7d2ce
Diameter
43619926
Circumference
137036039.07173
Area
1.4943754709105E+15
Volume
4.3456364971554E+22
Surface area
5.977501883642E+15
Circumference
137036039.07173
Perimeter
87239852
Area
475674486061369
Diagonal
30843945.469455
Surface area
2854046916368214
Volume
1.0374442941042E+22
Space diagonal
37775964.027197
Perimeter
65429889
Area
2.0597309443063E+14
Altitude
18887982.013599
Surface area
2.0597309443063E+14
Volume
1.222639825774E+21
Height
10281315.156485