20665965 is an odd 8-digits composite number following 20665964
and preceding 20665966 . In scientific notation, it is written as 2.0665965 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 10373376 positive integers (up to 20665965) that are relatively prime to 20665965.
20665965 has 8 divisors, whose sum is 25285728
The reverse of 20665965 is 56956602
Previous prime number is 51
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred sixty-five thousand nine hundred sixty-five
Scientific notation
2.0665965 × 10^7
Engineering notation
2.0665965 × 10^6
Prime Factorization
5 × 51 × 81043
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20665965
Product of the distinct prime numbers
The prime factorization of 20665965 is 5 × 51 × 81043.
Since it has a total of 3 prime factors.
4 , 2 , 88 , 4 , 92 , 627 , 9091 , 5024 , 9613 , 61093 , 919461 , 620107 , 8032422 , 8586312 , 28545222 , 20060402 , 338714435 , 83275774 , 1210783229 , 4061489677
n×2
41331930
n×3
61997895
n×4
82663860
n×5
103329825
n÷2
10332982.5
n÷3
6888655
n÷3
5166491.25
n÷5
4133193
n2
427082109381225
n3
8.8260639245986E+21
n4
1.8239912815352E+29
n5
3.7694539984511E+36
2 √n
4545.9833919626
3 √n
274.42177126542
4 √n
67.423908162926
5 √n
29.043646214646
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
-20665964
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 20665965 can be divided by 8 positive divisors.
The sum of these divisors (counting 20665965) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110101011001101101
3
Ternary
1102212221101010
4
Quaternary
1032311121231
5
Quinary
20242302330
6
Senary
2014535433
8
Octal
116653155
10
Decimal
20665965
12
Duodecimal
6b07579
16
Hexadecimal
13b566d
20
Vigesimal
6934i5
36
Base36
caxyl
md5
530f3620cb2508ef805aadc709b3e91f
sha1
422ea59b812ecc1ba05ab9e2130535027d96a5cf
sha256
7e36f9a401ba9f69cef4854cdb135f4dcf0aaed3dbaf9ef426f8ea3f3e44e900
sha512
4a2536b53e080a1f43a4b53bd949fdf69e29043f3342bda86e6c72694ac56bdbe23f71ae0d8802177b614624004977bdcc3be9a20523d25d8def8de17944d003
ripemd-160
d51f546bfef4a5c0d3c5f5034dc10f2fada67208
Diameter
41331930
Circumference
129848087.64669
Area
1.3417180173117E+15
Volume
3.6970530114177E+22
Surface area
5.3668720692468E+15
Circumference
129848087.64669
Perimeter
82663860
Area
427082109381225
Diagonal
29226087.982528
Surface area
2562492656287350
Volume
8.8260639245986E+21
Space diagonal
35794501.36744
Perimeter
61997895
Area
1.8493197811299E+14
Altitude
17897250.68372
Surface area
1.8493197811299E+14
Volume
1.0401616087116E+21
Height
9742029.3275092