21293909 is an odd 8-digits composite number following 21293908
and preceding 21293910 . In scientific notation, it is written as 2.1293909 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 16752960 positive integers (up to 21293909) that are relatively prime to 21293909.
21293909 has 16 divisors, whose sum is 26355840
The reverse of 21293909 is 90939212
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million two hundred ninety-three thousand nine hundred nine
Scientific notation
2.1293909 × 10^7
Engineering notation
2.1293909 × 10^6
Prime Factorization
7 × 13 × 211 × 1109
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21293909
Product of the distinct prime numbers
The prime factorization of 21293909 is 7 × 13 × 211 × 1109.
Since it has a total of 4 prime factors.
9 , 10 , 14 , 27 , 726 , 741 , 4971 , 4304 , 55598 , 87997 , 756314 , 784317 , 1747378 , 4897236 , 95716579 , 52330747 , 746947961 , 752064230 , 6858355757 , 922863780
n×2
42587818
n×3
63881727
n×4
85175636
n×5
106469545
n÷2
10646954.5
n÷3
7097969.6666667
n÷3
5323477.25
n÷5
4258781.8
n2
453430560500281
n3
9.655309093112E+21
n4
2.055992731956E+29
n5
4.3780122138932E+36
2 √n
4614.5323706742
3 √n
277.17355872775
4 √n
67.930349407862
5 √n
29.21803996319
1 , 7 , 13 , 91 , 211 , 1109 , 1477 , 2743 , 7763 , 14417 , 19201 , 100919 , 233999 , 1637993 , 3041987 , 21293909
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21293908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21293909 can be divided by 16 positive divisors.
The sum of these divisors (counting 21293909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001001110101101010101
3
Ternary
1111001211202022
4
Quaternary
1101032231111
5
Quinary
20422401114
6
Senary
2040222525
8
Octal
121165525
10
Decimal
21293909
12
Duodecimal
716aa45
16
Hexadecimal
144eb55
20
Vigesimal
6d1ef9
36
Base36
coehh
md5
524ed05c0d0052ee4322f712fb7bbf9f
sha1
cf375b0468232fec8d7cbd73139d951bb8775c09
sha256
c95c81926941d3baeff5a00f2ebd27dc8edeb961e2b75c7944bbc98c67b2ffa4
sha512
79c3592d2bdc2ca3645cc7c91895c4365755fcedf2d32771f9ff9a47d8c4b201e11a981e438c4a76c4cad8f22980f7894177d04022542c158ff478af6495292b
ripemd-160
1aeb82c7f4bc6531dc9470e3158e10aaf8425057
Diameter
42587818
Circumference
133793576.16122
Area
1.4244941177808E+15
Volume
4.0444064153412E+22
Surface area
5.6979764711231E+15
Circumference
133793576.16122
Perimeter
85175636
Area
453430560500281
Diagonal
30114134.903739
Surface area
2720583363001686
Volume
9.655309093112E+21
Space diagonal
36882132.279748
Perimeter
63881727
Area
1.9634119212273E+14
Altitude
18441066.139874
Surface area
1.9634119212273E+14
Volume
1.1378890890319E+21
Height
10038044.967913