20165905 is an odd 8-digits composite number following 20165904
and preceding 20165906 . In scientific notation, it is written as 2.0165905 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 15733312 positive integers (up to 20165905) that are relatively prime to 20165905.
20165905 has 16 divisors, whose sum is 24805440
The reverse of 20165905 is 50956102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred sixty-five thousand nine hundred five
Scientific notation
2.0165905 × 10^7
Engineering notation
2.0165905 × 10^6
Prime Factorization
5 × 347 × 59 × 197
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20165905
Product of the distinct prime numbers
The prime factorization of 20165905 is 5 × 347 × 59 × 197.
Since it has a total of 4 prime factors.
10 , 7 , 2 , 22 , 860 , 740 , 6318 , 8939 , 33689 , 83539 , 99647 , 440824 , 6420632 , 9499001 , 10622146 , 90263331 , 912641352 , 697500705 , 369038593 , 9505850252
n×2
40331810
n×3
60497715
n×4
80663620
n×5
100829525
n÷2
10082952.5
n÷3
6721968.3333333
n÷3
5041476.25
n÷5
4033181
n2
406663724469025
n3
8.2007420345885E+21
n4
1.6537538479902E+29
n5
3.3349442991955E+36
2 √n
4490.6463899978
3 √n
272.19025490385
4 √n
67.012285366176
5 √n
28.901710291526
1 , 5 , 59 , 197 , 295 , 347 , 985 , 1735 , 11623 , 20473 , 58115 , 68359 , 102365 , 341795 , 4033181 , 20165905
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
-20165904
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 20165905 can be divided by 16 positive divisors.
The sum of these divisors (counting 20165905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111011010100010001
3
Ternary
1101221112102101
4
Quaternary
1030323110101
5
Quinary
20130302110
6
Senary
2000120401
8
Octal
114732421
10
Decimal
20165905
12
Duodecimal
6906101
16
Hexadecimal
133b511
20
Vigesimal
660ef5
36
Base36
c0841
md5
24f9410761141c2a52591779b9ba41cc
sha1
216574b23cc14f763f79d7ad7f65b1e88997d02a
sha256
93ab24ab67f24c8241d782711e95a07eaf1e39a25f0d2f92f0e0efd1a87f3a0f
sha512
5983fc3df716c3ebc133782c981ce8942ef9565fc1ab84c302c510c5ff6c303038f2576b5b8cb15766fce828b1ed6e61c4dd15699b87c29065c89941f6296cf2
ripemd-160
3217dc42b38a92006399a5a3dfda440a86fe0048
Diameter
40331810
Circumference
126706118.00198
Area
1.2775717692734E+15
Volume
3.4351187906464E+22
Surface area
5.1102870770934E+15
Circumference
126706118.00198
Perimeter
80663620
Area
406663724469025
Diagonal
28518896.348527
Surface area
2439982346814150
Volume
8.2007420345885E+21
Space diagonal
34928372.040607
Perimeter
60497715
Area
1.7609055809389E+14
Altitude
17464186.020304
Surface area
1.7609055809389E+14
Volume
9.6646671723652E+20
Height
9506298.7828425