20665909 is an odd 8-digits composite number following 20665908
and preceding 20665910 . In scientific notation, it is written as 2.0665909 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 18745200 positive integers (up to 20665909) that are relatively prime to 20665909.
20665909 has 8 divisors, whose sum is 22595040
The reverse of 20665909 is 90956602
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred sixty-five thousand nine hundred nine
Scientific notation
2.0665909 × 10^7
Engineering notation
2.0665909 × 10^6
Prime Factorization
11 × 509 × 3691
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20665909
Product of the distinct prime numbers
The prime factorization of 20665909 is 11 × 509 × 3691.
Since it has a total of 3 prime factors.
6 , 9 , 93 , 98 , 385 , 787 , 8258 , 1539 , 28229 , 94621 , 125125 , 352720 , 8129578 , 3777662 , 58715783 , 46102733 , 188400770 , 438747448 , 2284798429 , 2174719595
n×2
41331818
n×3
61997727
n×4
82663636
n×5
103329545
n÷2
10332954.5
n÷3
6888636.3333333
n÷3
5166477.25
n÷5
4133181.8
n2
427079794796281
n3
8.8259921749986E+21
n4
1.8239715112323E+29
n5
3.769402926972E+36
2 √n
4545.9772326751
3 √n
274.42152339196
4 √n
67.423862487068
5 √n
29.043630474312
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20665908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20665909 can be divided by 8 positive divisors.
The sum of these divisors (counting 20665909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110101011000110101
3
Ternary
1102212221022001
4
Quaternary
1032311120311
5
Quinary
20242302114
6
Senary
2014535301
8
Octal
116653065
10
Decimal
20665909
12
Duodecimal
6b07531
16
Hexadecimal
13b5635
20
Vigesimal
6934f9
36
Base36
caxx1
md5
11172b08d84d87f73729cc67462bae41
sha1
990d8b268a47eb364f8027992462109debfc4a12
sha256
c0d67a1f747c09963f598884f32a65f7f0af95aea7563edc24d3c418d9ecfe0a
sha512
92742591dbebf73b748c093de43379c6819a5bd0eb494e86717b52033e80b5871d4fedeb78cb106659bd21d69e6c6de741cc706e2f1e1441db778f15098d049a
ripemd-160
1076438c019994f3851776fd867fa0c8baa478f3
Diameter
41331818
Circumference
129847735.78831
Area
1.3417107458286E+15
Volume
3.6970229570156E+22
Surface area
5.3668429833145E+15
Circumference
129847735.78831
Perimeter
82663636
Area
427079794796281
Diagonal
29226008.786568
Surface area
2562478768777686
Volume
8.8259921749986E+21
Space diagonal
35794404.372595
Perimeter
61997727
Area
1.8493097586831E+14
Altitude
17897202.186297
Surface area
1.8493097586831E+14
Volume
1.0401531529402E+21
Height
9742002.9288561