20686105 is an odd 8-digits composite number following 20686104
and preceding 20686106 . In scientific notation, it is written as 2.0686105 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14993280 positive integers (up to 20686105) that are relatively prime to 20686105.
20686105 has 16 divisors, whose sum is 27172224
The reverse of 20686105 is 50168602
Previous prime number is 823
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million six hundred eighty-six thousand one hundred five
Scientific notation
2.0686105 × 10^7
Engineering notation
2.0686105 × 10^6
Prime Factorization
5 × 11 × 823 × 457
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20686105
Product of the distinct prime numbers
The prime factorization of 20686105 is 5 × 11 × 823 × 457.
Since it has a total of 4 prime factors.
4 , 9 , 7 , 85 , 860 , 687 , 2641 , 6086 , 38046 , 80049 , 442837 , 808440 , 7585443 , 5812010 , 17703953 , 51454117 , 94638429 , 108898170 , 4304063898 , 5736789619
n×2
41372210
n×3
62058315
n×4
82744420
n×5
103430525
n÷2
10343052.5
n÷3
6895368.3333333
n÷3
5171526.25
n÷5
4137221
n2
427914940071025
n3
8.8518933813779E+21
n4
1.8311119593599E+29
n5
3.7878574258074E+36
2 √n
4548.1979948107
3 √n
274.51088816282
4 √n
67.440329142218
5 √n
29.049304901741
1 , 5 , 11 , 55 , 457 , 823 , 2285 , 4115 , 5027 , 9053 , 25135 , 45265 , 376111 , 1880555 , 4137221 , 20686105
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
-20686104
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 20686105 can be divided by 16 positive divisors.
The sum of these divisors (counting 20686105) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010010100011001
3
Ternary
1102220222000001
4
Quaternary
1032322110121
5
Quinary
20243423410
6
Senary
2015213001
8
Octal
116722431
10
Decimal
20686105
12
Duodecimal
6b17161
16
Hexadecimal
13ba519
20
Vigesimal
695f55
36
Base36
cbdi1
md5
c54b7085c1dd00e84f81acf44771f9cc
sha1
43c571a284c575106cf71ae9d2ed33bd8bb26fd9
sha256
2290502be5d96b5db883a8352957deab96145c84e28aeeed2346598b9ccf274f
sha512
9a8486be7ab4618423839c245159084e3ef7ba625a38625e16b3ec2a123a9bc8fe1315d6cb0d450bf67e48e60f2cf8ebe81428a303d3c4988d9c79517a1cd548
ripemd-160
cd3fa5855b7aa959e2cbe45b9f55df151aa9bc47
Diameter
41372210
Circumference
129974630.99877
Area
1.3443344320884E+15
Volume
3.7078724289729E+22
Surface area
5.3773377283538E+15
Circumference
129974630.99877
Perimeter
82744420
Area
427914940071025
Diagonal
29254570.243674
Surface area
2567489640426150
Volume
8.8518933813779E+21
Space diagonal
35829384.870705
Perimeter
62058315
Area
1.852926043802E+14
Altitude
17914692.435352
Surface area
1.852926043802E+14
Volume
1.0432056393854E+21
Height
9751523.414558