21043909 is an odd 8-digits composite number following 21043908
and preceding 21043910 . In scientific notation, it is written as 2.1043909 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19806016 positive integers (up to 21043909) that are relatively prime to 21043909.
21043909 has 4 divisors, whose sum is 22281804
The reverse of 21043909 is 90934012
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million forty-three thousand nine hundred nine
Scientific notation
2.1043909 × 10^7
Engineering notation
2.1043909 × 10^6
Prime Factorization
17 × 1237877
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21043909
Product of the distinct prime numbers
The prime factorization of 21043909 is 17 × 1237877.
Since it has a total of 2 prime factors.
8 , 8 , 7 , 37 , 965 , 663 , 5313 , 8998 , 4984 , 40874 , 983106 , 968480 , 9582297 , 2231077 , 53478576 , 79032899 , 272861692 , 614415481 , 8647685735 , 9459274324
n×2
42087818
n×3
63131727
n×4
84175636
n×5
105219545
n÷2
10521954.5
n÷3
7014636.3333333
n÷3
5260977.25
n÷5
4208781.8
n2
442846106000281
n3
9.3192131556743E+21
n4
1.9611267359961E+29
n5
4.1269772569769E+36
2 √n
4587.3640579313
3 √n
276.08457203137
4 √n
67.730082370622
5 √n
29.149108918922
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
-21043908
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 21043909 can be divided by 4 positive divisors.
The sum of these divisors (counting 21043909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010001101011000101
3
Ternary
1110121010211001
4
Quaternary
1100101223011
5
Quinary
20341401114
6
Senary
2031013301
8
Octal
120215305
10
Decimal
21043909
12
Duodecimal
706a231
16
Hexadecimal
1411ac5
20
Vigesimal
6ba9f9
36
Base36
cj1l1
md5
dc41b1eddb0f59d72e1186fac724b640
sha1
d8f59972a5a515fcb2cb5e5c86e432bccaf56c9b
sha256
9eec8d64085b7f03248ef7fb1047f9f41668b749d9124e057a5b6814eab57273
sha512
a616e7050e145c62280e8239def8c825fd83eedcf87b42902a064d24e41feb97a10f69de13aa6d1341f8cda0a35b5ec3324a8b811a5b9ed904ca4b117b991944
ripemd-160
fdc53ab85a52985498c29753c5db5792e6be6f53
Diameter
42087818
Circumference
132222779.83442
Area
1.3912420732813E+15
Volume
3.9036228782805E+22
Surface area
5.5649682931253E+15
Circumference
132222779.83442
Perimeter
84175636
Area
442846106000281
Diagonal
29760581.513145
Surface area
2657076636001686
Volume
9.3192131556743E+21
Space diagonal
36449119.577856
Perimeter
63131727
Area
1.9175798888163E+14
Altitude
18224559.788928
Surface area
1.9175798888163E+14
Volume
1.09827980295E+21
Height
9920193.8377151