21683909 is an odd 8-digits composite number following 21683908
and preceding 21683910 . In scientific notation, it is written as 2.1683909 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 19117056 positive integers (up to 21683909) that are relatively prime to 21683909.
21683909 has 16 divisors, whose sum is 24418800
The reverse of 21683909 is 90938612
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million six hundred eighty-three thousand nine hundred nine
Scientific notation
2.1683909 × 10^7
Engineering notation
2.1683909 × 10^6
Prime Factorization
13 × 29 × 113 × 509
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21683909
Product of the distinct prime numbers
The prime factorization of 21683909 is 13 × 29 × 113 × 509.
Since it has a total of 4 prime factors.
8 , 3 , 36 , 36 , 556 , 60 , 4101 , 4967 , 35963 , 20959 , 280914 , 85400 , 5725772 , 3734910 , 37842444 , 60691412 , 586363477 , 467458484 , 1995164467 , 6625540988
n×2
43367818
n×3
65051727
n×4
86735636
n×5
108419545
n÷2
10841954.5
n÷3
7227969.6666667
n÷3
5420977.25
n÷5
4336781.8
n2
470191909520281
n3
1.0195598578574E+22
n4
2.2108043177833E+29
n5
4.793887964362E+36
2 √n
4656.5984366273
3 √n
278.85548542423
4 √n
68.239273418079
5 √n
29.324290636907
1 , 13 , 29 , 113 , 377 , 509 , 1469 , 3277 , 6617 , 14761 , 42601 , 57517 , 191893 , 747721 , 1667993 , 21683909
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
-21683908
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 21683909 can be divided by 16 positive divisors.
The sum of these divisors (counting 21683909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101101111011000101
3
Ternary
1111210122201202
4
Quaternary
1102231323011
5
Quinary
21022341114
6
Senary
2052432245
8
Octal
122557305
10
Decimal
21683909
12
Duodecimal
7318685
16
Hexadecimal
14adec5
20
Vigesimal
6fa9f9
36
Base36
cwret
md5
8acaafbdaf8fff4d432a0b1687cdb2ea
sha1
d1469aa6056d766aeffa5daecf79b36676217029
sha256
e329b4e13960e973e8e5fc40630f72185aaee4cb6242c64c85c2ec172a8edaf0
sha512
036a5cf9d959a1be34064e8aad94717e0ee805e6fe305d26002d55dd2a26297438337deba7b68ddc4c717eff487832af3fe6bc1c65cd79bcc880c73c1ba51eef
ripemd-160
b64d7474320e81af9dbd47abfac2d33af573e7b9
Diameter
43367818
Circumference
136244018.43102
Area
1.4771514487263E+15
Volume
4.2707223457865E+22
Surface area
5.9086057949051E+15
Circumference
136244018.43102
Perimeter
86735636
Area
470191909520281
Diagonal
30665678.193064
Surface area
2821151457121686
Volume
1.0195598578574E+22
Space diagonal
37557632.0947
Perimeter
65051727
Area
2.0359906914924E+14
Altitude
18778816.04735
Surface area
2.0359906914924E+14
Volume
1.2015628155276E+21
Height
10221892.731021