20161665 is an odd 8-digits composite number following 20161664
and preceding 20161666 . In scientific notation, it is written as 2.0161665 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 10688544 positive integers (up to 20161665) that are relatively prime to 20161665.
20161665 has 16 divisors, whose sum is 27043200
The reverse of 20161665 is 56616102
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred sixty-one thousand six hundred sixty-five
Scientific notation
2.0161665 × 10^7
Engineering notation
2.0161665 × 10^6
Prime Factorization
9 × 5 × 179 × 2503
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20161665
Product of the distinct prime numbers
The prime factorization of 20161665 is 9 × 5 × 179 × 2503.
Since it has a total of 4 prime factors.
9 , 10 , 3 , 96 , 393 , 589 , 3793 , 5207 , 81187 , 84913 , 614390 , 923048 , 6259880 , 5728036 , 65999182 , 36102221 , 282553658 , 987233487 , 3280642648 , 7432978586
n×2
40323330
n×3
60484995
n×4
80646660
n×5
100808325
n÷2
10080832.5
n÷3
6720555
n÷3
5040416.25
n÷5
4032333
n2
406492735572225
n3
8.1955703595408E+21
n4
1.6523634407299E+29
n5
3.3314398150244E+36
2 √n
4490.1742727872
3 √n
272.17117703331
4 √n
67.008762656739
5 √n
28.900494838423
1 , 5 , 9 , 45 , 179 , 895 , 1611 , 2503 , 8055 , 12515 , 22527 , 112635 , 448037 , 2240185 , 4032333 , 20161665
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
-20161664
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 20161665 can be divided by 16 positive divisors.
The sum of these divisors (counting 20161665) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111010010010000001
3
Ternary
1101221022121100
4
Quaternary
1030322102001
5
Quinary
20130133130
6
Senary
2000045013
8
Octal
114722201
10
Decimal
20161665
12
Duodecimal
6903769
16
Hexadecimal
133a481
20
Vigesimal
660435
36
Base36
c04u9
md5
92dbc9817cffeb40ca830d778af35eac
sha1
c6fc2a5ecfa2a4b47c4611f5f810cf2163d1092e
sha256
39b356de961a9df1c983cecc50ad4b5ca2db264206abab78bd3e5d2a23f7146f
sha512
9b6c13fdb52bfebccdbf77b19d4a8172802fad7275384b0913a8eea47b3394d15487bb1476bb75daefaa5744487f3fdbcdb2fd0c017e6dd8d11883ce775ec488
ripemd-160
31c4b1818390f477a404e5438a3354d6711effe8
Diameter
40323330
Circumference
126679477.29628
Area
1.2770345918113E+15
Volume
3.4329524844682E+22
Surface area
5.1081383672453E+15
Circumference
126679477.29628
Perimeter
80646660
Area
406492735572225
Diagonal
28512900.083023
Surface area
2438956413433350
Volume
8.1955703595408E+21
Space diagonal
34921028.145183
Perimeter
60484995
Area
1.7601651772969E+14
Altitude
17460514.072592
Surface area
1.7601651772969E+14
Volume
9.6585722948713E+20
Height
9504300.0276743