21109811 is an odd 8-digits composite number following 21109810
and preceding 21109812 . In scientific notation, it is written as 2.1109811 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 21054312 positive integers (up to 21109811) that are relatively prime to 21109811.
21109811 has 4 divisors, whose sum is 21165312
The reverse of 21109811 is 11890112
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred nine thousand eight hundred eleven
Scientific notation
2.1109811 × 10^7
Engineering notation
2.1109811 × 10^6
Prime Factorization
383 × 55117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21109811
Product of the distinct prime numbers
The prime factorization of 21109811 is 383 × 55117.
Since it has a total of 2 prime factors.
10 , 4 , 59 , 71 , 961 , 366 , 4233 , 878 , 49172 , 33921 , 705735 , 765770 , 5159658 , 2442252 , 88086735 , 28584026 , 60536419 , 709839595 , 6024612533 , 5458157136
n×2
42219622
n×3
63329433
n×4
84439244
n×5
105549055
n÷2
10554905.5
n÷3
7036603.6666667
n÷3
5277452.75
n÷5
4221962.2
n2
445624120455721
n3
9.4070409598615E+21
n4
1.9858085673193E+29
n5
4.1920043538292E+36
2 √n
4594.5414352251
3 √n
276.3724711019
4 √n
67.783046812791
5 √n
29.167343009867
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
-21109810
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 21109811 can be divided by 4 positive divisors.
The sum of these divisors (counting 21109811) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100001110000110011
3
Ternary
1110201111012212
4
Quaternary
1100201300303
5
Quinary
20401003221
6
Senary
2032242335
8
Octal
120416063
10
Decimal
21109811
12
Duodecimal
70a03ab
16
Hexadecimal
1421c33
20
Vigesimal
6bieab
36
Base36
ckgfn
md5
50b38b9f7963235b8fa927d5e8ecb7b6
sha1
a15dc4ccbed1cc053a37592ac4bf24ca504a07a7
sha256
7a3a9d7ef12255a81a8098edd66c826c6a9c61eff99e5b655502290e65164440
sha512
cb447647f25cb5f26ec0374b74e0ab9c0f5bade2f5bbcc393f1e776d20ca3697b06153cc3d3a0c5b99efa926efa42769bba85d07d2168593d32ed290dde80204
ripemd-160
1ed3558ce3cca4aa0afa4d76500e9de9fa4d72a7
Diameter
42219622
Circumference
132636854.31254
Area
1.3999694630861E+15
Volume
3.9404121028692E+22
Surface area
5.5998778523444E+15
Circumference
132636854.31254
Perimeter
84439244
Area
445624120455721
Diagonal
29853781.015333
Surface area
2673744722734326
Volume
9.4070409598615E+21
Space diagonal
36563265.190176
Perimeter
63329433
Area
1.9296090442688E+14
Altitude
18281632.595088
Surface area
1.9296090442688E+14
Volume
1.1086304089363E+21
Height
9951260.3384442