20687065 is an odd 8-digits composite number following 20687064
and preceding 20687066 . In scientific notation, it is written as 2.0687065 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 14185248 positive integers (up to 20687065) that are relatively prime to 20687065.
20687065 has 12 divisors, whose sum is 28877796
The reverse of 20687065 is 56078602
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million six hundred eighty-seven thousand sixty-five
Scientific notation
2.0687065 × 10^7
Engineering notation
2.0687065 × 10^6
Prime Factorization
7 × 5 × 7 × 84437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2955295
Product of the distinct prime numbers
The prime factorization of 20687065 is 7 × 5 × 7 × 84437.
Since it has a total of 4 prime factors.
6 , 10 , 59 , 17 , 777 , 643 , 8951 , 205 , 68769 , 91253 , 56834 , 359021 , 3732080 , 9967829 , 15921979 , 50327974 , 957963431 , 310404483 , 1681118557 , 9914799654
n×2
41374130
n×3
62061195
n×4
82748260
n×5
103435325
n÷2
10343532.5
n÷3
6895688.3333333
n÷3
5171766.25
n÷5
4137413
n2
427954658314225
n3
8.8531258335992E+21
n4
1.8314518957285E+29
n5
3.7887364411308E+36
2 √n
4548.3035298889
3 √n
274.5151345942
4 √n
67.44111157068
5 √n
29.049574520551
1 , 5 , 7 , 35 , 49 , 245 , 84437 , 422185 , 591059 , 2955295 , 4137413 , 20687065
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687064
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687065 can be divided by 12 positive divisors.
The sum of these divisors (counting 20687065) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010100011011001
3
Ternary
1102221000022121
4
Quaternary
1032322203121
5
Quinary
20243441230
6
Senary
2015221241
8
Octal
116724331
10
Decimal
20687065
12
Duodecimal
6b17821
16
Hexadecimal
13ba8d9
20
Vigesimal
695hd5
36
Base36
cbe8p
md5
7763ddb37b4c0f84513fd238ff5040bd
sha1
90326f0e0b9f4aaeff6bed418678d3929f3c7827
sha256
bb242106b33ee2e6007fe00f705f115ea59466c329f606ef2a28198534751458
sha512
3aec8336b7c752f54c63d310f6afe98e5b40fc5e6b6919f1ac18a082d9de2431b6281aad3512bbb617e30eff09210a33f83c92f968fc74d3260782cab4e45f65
ripemd-160
49f3f7fb4e67b53b6c12a474fa9a716c69a81d41
Diameter
41374130
Circumference
129980662.85667
Area
1.3444592106295E+15
Volume
3.7083886773522E+22
Surface area
5.377836842518E+15
Circumference
129980662.85667
Perimeter
82748260
Area
427954658314225
Diagonal
29255927.888694
Surface area
2567727949885350
Volume
8.8531258335992E+21
Space diagonal
35831047.63948
Perimeter
62061195
Area
1.85309802884E+14
Altitude
17915523.81974
Surface area
1.85309802884E+14
Volume
1.0433508852726E+21
Height
9751975.9628979