20165691 is an odd 8-digits composite number following 20165690
and preceding 20165692 . In scientific notation, it is written as 2.0165691 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 10636704 positive integers (up to 20165691) that are relatively prime to 20165691.
20165691 has 16 divisors, whose sum is 33092864
The reverse of 20165691 is 19656102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred sixty-five thousand six hundred ninety-one
Scientific notation
2.0165691 × 10^7
Engineering notation
2.0165691 × 10^6
Prime Factorization
3 × 7 × 13 × 73867
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20165691
Product of the distinct prime numbers
The prime factorization of 20165691 is 3 × 7 × 13 × 73867.
Since it has a total of 4 prime factors.
5 , 9 , 28 , 90 , 443 , 953 , 6284 , 7910 , 9611 , 44972 , 522501 , 2574 , 7256254 , 1100732 , 84093836 , 4222120 , 322901880 , 172057792 , 5161095802 , 8221711884
n×2
40331382
n×3
60497073
n×4
80662764
n×5
100828455
n÷2
10082845.5
n÷3
6721897
n÷3
5041422.75
n÷5
4033138.2
n2
406655093507481
n3
8.200480959248E+21
n4
1.6536836507558E+29
n5
3.3347673512893E+36
2 √n
4490.6225626298
3 √n
272.18929207541
4 √n
67.01210758236
5 √n
28.901648950443
1 , 3 , 7 , 13 , 21 , 39 , 91 , 273 , 73867 , 221601 , 517069 , 960271 , 1551207 , 2880813 , 6721897 , 20165691
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
-20165690
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 20165691 can be divided by 16 positive divisors.
The sum of these divisors (counting 20165691) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111011010000111011
3
Ternary
1101221112010110
4
Quaternary
1030323100323
5
Quinary
20130300231
6
Senary
2000115403
8
Octal
114732073
10
Decimal
20165691
12
Duodecimal
6905b63
16
Hexadecimal
133b43b
20
Vigesimal
660e4b
36
Base36
c07y3
md5
b1f08995dcecd53fb5a40c197679b0ac
sha1
8a46e928082d8570baf5af3da9c724e0827ecdce
sha256
8a1fe58afc7889b24713365df14dec7fd180564603e788b7fc5e43e615adbb01
sha512
ca3783417376052f2ff9432d625b515e1e98c5b3671ee217e032b605d1c488b0c88f7204bed694ac1b06736f7ae4b47cff8c6f5b97993b1eae23aa0de354663e
ripemd-160
98cff26cef42f16bae806d94bbab3ba7c13384c9
Diameter
40331382
Circumference
126704773.40032
Area
1.277544654308E+15
Volume
3.4350094316635E+22
Surface area
5.1101786172319E+15
Circumference
126704773.40032
Perimeter
80662764
Area
406655093507481
Diagonal
28518593.706825
Surface area
2439930561044886
Volume
8.200480959248E+21
Space diagonal
34928001.381734
Perimeter
60497073
Area
1.7608682077791E+14
Altitude
17464000.690867
Surface area
1.7608682077791E+14
Volume
9.6643594921257E+20
Height
9506197.902275