20685505 is an odd 8-digits composite number following 20685504
and preceding 20685506 . In scientific notation, it is written as 2.0685505 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 16548400 positive integers (up to 20685505) that are relatively prime to 20685505.
20685505 has 4 divisors, whose sum is 24822612
The reverse of 20685505 is 50558602
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred eighty-five thousand five hundred five
Scientific notation
2.0685505 × 10^7
Engineering notation
2.0685505 × 10^6
Prime Factorization
5 × 4137101
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20685505
Product of the distinct prime numbers
The prime factorization of 20685505 is 5 × 4137101.
Since it has a total of 2 prime factors.
10 , 1 , 99 , 52 , 993 , 273 , 1734 , 5061 , 95555 , 97584 , 581982 , 261785 , 9816713 , 6383136 , 19672312 , 18589072 , 266049639 , 450370347 , 2992352157 , 5452435275
n×2
41371010
n×3
62056515
n×4
82742020
n×5
103427525
n÷2
10342752.5
n÷3
6895168.3333333
n÷3
5171376.25
n÷5
4137101
n2
427890117105025
n3
8.8511231568266E+21
n4
1.8308995231615E+29
n5
3.7873081240855E+36
2 √n
4548.1320341432
3 √n
274.50823407649
4 √n
67.4398401106
5 √n
29.049136384902
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
-20685504
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 20685505 can be divided by 4 positive divisors.
The sum of these divisors (counting 20685505) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111010001011000001
3
Ternary
1102220221011211
4
Quaternary
1032322023001
5
Quinary
20243414010
6
Senary
2015210121
8
Octal
116721301
10
Decimal
20685505
12
Duodecimal
6b16941
16
Hexadecimal
13ba2c1
20
Vigesimal
695df5
36
Base36
cbd1d
md5
6373aaf8f7e7d4735dc27c4244898fec
sha1
3a6831599d77c80dfe84d996cc548f2e61b69ac0
sha256
d6d097ec504f8df781e4f78449b883f62e9e0254ff1c6ed8f1a55eeb6b33ae22
sha512
e47647d8ce9c8babad5ecc80d71540588a3b294b53365c7bd9581ad7476511988aff50813ea0021f87147474a44642dc3c506cc662c01d75a09a1167ed2ccbae
ripemd-160
63984b34406ad7a95bd19957f87a4045cdcf83b6
Diameter
41371010
Circumference
129970861.08759
Area
1.3442564484408E+15
Volume
3.7075497980673E+22
Surface area
5.3770257937633E+15
Circumference
129970861.08759
Perimeter
82742020
Area
427890117105025
Diagonal
29253721.715536
Surface area
2567340702630150
Volume
8.8511231568266E+21
Space diagonal
35828345.64022
Perimeter
62056515
Area
1.8528185572062E+14
Altitude
17914172.82011
Surface area
1.8528185572062E+14
Volume
1.0431148675516E+21
Height
9751240.5718455