20686780 is an even 8-digits composite number following 20686779
and preceding 20686781 . In scientific notation, it is written as 2.0686780 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 8274704 positive integers (up to 20686780) that are relatively prime to 20686780.
20686780 has 12 divisors, whose sum is 43442280
The reverse of 20686780 is 08768602
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million six hundred eighty-six thousand seven hundred eighty
Scientific notation
2.0686780 × 10^7
Engineering notation
2.0686780 × 10^6
Prime Factorization
2 × 2 × 5 × 1034339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10343390
Product of the distinct prime numbers
The prime factorization of 20686780 is 2 × 2 × 5 × 1034339.
Since it has a total of 4 prime factors.
5 , 4 , 17 , 60 , 927 , 117 , 4633 , 8364 , 79422 , 7809 , 643100 , 501852 , 8120997 , 4780967 , 19433951 , 91566811 , 777482869 , 94302282 , 7092749398 , 2046961107
n×2
41373560
n×3
62060340
n×4
82747120
n×5
103433900
n÷2
10343390
n÷3
6895593.3333333
n÷3
5171695
n÷5
4137356
n2
427942866768400
n3
8.8527599374072E+21
n4
1.8313509721796E+29
n5
3.7884754664265E+36
2 √n
4548.2721994181
3 √n
274.51387394859
4 √n
67.440879290073
5 √n
29.049494478512
1 , 2 , 4 , 5 , 10 , 20 , 1034339 , 2068678 , 4137356 , 5171695 , 10343390 , 20686780
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
-20686779
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 20686780 can be divided by 12 positive divisors.
The sum of these divisors (counting 20686780) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010011110111100
3
Ternary
1102220222221001
4
Quaternary
1032322132330
5
Quinary
20243434110
6
Senary
2015220044
8
Octal
116723674
10
Decimal
20686780
12
Duodecimal
6b17624
16
Hexadecimal
13ba7bc
20
Vigesimal
695gj0
36
Base36
cbe0s
md5
9887a9d357a7eb05106a577c0e96db3a
sha1
0e35205884fe2c84991ca1a5eace88e6313a98d9
sha256
c65f472d70dc6f38edcadef6206ca29ca7255688e8abd8a17e6feb5b7ad809e9
sha512
fdeb84fdc61d3a38901a0fafa7dc8f9c1064a12cf123229acd7c25c95f1ea10c732ae9cef2ab9595d892c9ab108af454b884306e47248a9be5db81f5e5435e54
ripemd-160
3a9902f9716cbe97635ad827b4df18c21a277692
Diameter
41373560
Circumference
129978872.14886
Area
1.3444221663958E+15
Volume
3.7082354111137E+22
Surface area
5.377688665583E+15
Circumference
129978872.14886
Perimeter
82747120
Area
427942866768400
Diagonal
29255524.837828
Surface area
2567657200610400
Volume
8.8527599374072E+21
Space diagonal
35830554.005
Perimeter
62060340
Area
1.8530469699489E+14
Altitude
17915277.0025
Surface area
1.8530469699489E+14
Volume
1.0433077639929E+21
Height
9751841.6126095