20685045 is an odd 8-digits composite number following 20685044
and preceding 20685046 . In scientific notation, it is written as 2.0685045 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 11032016 positive integers (up to 20685045) that are relatively prime to 20685045.
20685045 has 4 divisors, whose sum is 22064064
The reverse of 20685045 is 54058602
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million six hundred eighty-five thousand forty-five
Scientific notation
2.0685045 × 10^7
Engineering notation
2.0685045 × 10^6
Prime Factorization
15 × 1379003
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20685045
Product of the distinct prime numbers
The prime factorization of 20685045 is 15 × 1379003.
Since it has a total of 2 prime factors.
9 , 7 , 47 , 36 , 238 , 395 , 4587 , 5494 , 89840 , 30810 , 197616 , 709837 , 3610323 , 5693948 , 57636655 , 5391509 , 746916407 , 61397723 , 4411313945 , 839507845
n×2
41370090
n×3
62055135
n×4
82740180
n×5
103425225
n÷2
10342522.5
n÷3
6895015
n÷3
5171261.25
n÷5
4137009
n2
427871086652025
n3
8.850532681596E+21
n4
1.8307366679278E+29
n5
3.7868870359238E+36
2 √n
4548.0814636504
3 √n
274.50619924222
4 √n
67.439465179154
5 √n
29.04900718601
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
-20685044
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 20685045 can be divided by 4 positive divisors.
The sum of these divisors (counting 20685045) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010000011110101
3
Ternary
1102220220112210
4
Quaternary
1032322003311
5
Quinary
20243410140
6
Senary
2015204033
8
Octal
116720365
10
Decimal
20685045
12
Duodecimal
6b16619
16
Hexadecimal
13ba0f5
20
Vigesimal
695cc5
36
Base36
cbcol
md5
587d9e16169956130ff50b93ddd5283b
sha1
1a672d4372c75673fd6584a6c15701f615d6c0f3
sha256
4e07ff72d97131b99648dd4ea830e9a833f85c0c2a082cc211025f8cd97a7b06
sha512
b36cf1df38daee43fd8b6770c40579f2555b72bc9aca5072f6e3865213babe4a651868e2e4fff90eb0ed5b6cb09f69da860626b43cb161a1f4b25019088eb9e8
ripemd-160
35b552d5581fb7be1f50bdfe0a30dc97e38c2f8e
Diameter
41370090
Circumference
129967970.82235
Area
1.3441966625095E+15
Volume
3.7073024603811E+22
Surface area
5.3767866500379E+15
Circumference
129967970.82235
Perimeter
82740180
Area
427871086652025
Diagonal
29253071.177298
Surface area
2567226519912150
Volume
8.850532681596E+21
Space diagonal
35827548.896849
Perimeter
62055135
Area
1.8527361529275E+14
Altitude
17913774.448424
Surface area
1.8527361529275E+14
Volume
1.0430452793783E+21
Height
9751023.7257659