20686786 is an even 8-digits composite number following 20686785
and preceding 20686787 . In scientific notation, it is written as 2.0686786 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 10136016 positive integers (up to 20686786) that are relatively prime to 20686786.
20686786 has 16 divisors, whose sum is 31657536
The reverse of 20686786 is 68768602
Previous prime number is 317
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million six hundred eighty-six thousand seven hundred eighty-six
Scientific notation
2.0686786 × 10^7
Engineering notation
2.0686786 × 10^6
Prime Factorization
2 × 67 × 317 × 487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20686786
Product of the distinct prime numbers
The prime factorization of 20686786 is 2 × 67 × 317 × 487.
Since it has a total of 4 prime factors.
1 , 2 , 91 , 76 , 524 , 947 , 7158 , 4465 , 73898 , 14822 , 940304 , 262508 , 1842280 , 1991039 , 72935955 , 77890912 , 713733803 , 922613820 , 3464940468 , 1954077580
n×2
41373572
n×3
62060358
n×4
82747144
n×5
103433930
n÷2
10343393
n÷3
6895595.3333333
n÷3
5171696.5
n÷5
4137357.2
n2
427943115009796
n3
8.852767640381E+21
n4
1.8313530968429E+29
n5
3.7884809604826E+36
2 √n
4548.2728590092
3 √n
274.51390048862
4 √n
67.440884180215
5 √n
29.049496163616
1 , 2 , 67 , 134 , 317 , 487 , 634 , 974 , 21239 , 32629 , 42478 , 65258 , 154379 , 308758 , 10343393 , 20686786
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
-20686785
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 20686786 can be divided by 16 positive divisors.
The sum of these divisors (counting 20686786) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110111010011111000010
3
Ternary
1102220222221021
4
Quaternary
1032322133002
5
Quinary
20243434121
6
Senary
2015220054
8
Octal
116723702
10
Decimal
20686786
12
Duodecimal
6b1762a
16
Hexadecimal
13ba7c2
20
Vigesimal
695gj6
36
Base36
cbe0y
md5
88573ad72ba0ad8ccb72ec4deaa9b1d0
sha1
35498a181a83566b38a76446febfa0fc03ffc0b3
sha256
8f5c46a0df2ae905c43ae18cbce9e204bb457835fb59ad709423a6c570ac072d
sha512
e35ee8cff1e459c126c309e010ec421e82f1f9b96133d099652913ae98c1dc2b1c06b0a5991c94a95444aacd7672677979494b37362b5afae1a181cb0c070999
ripemd-160
0d717e7e31892221561bab835dfeb0bd83c78e6f
Diameter
41373572
Circumference
129978909.84797
Area
1.3444229462691E+15
Volume
3.7082386377278E+22
Surface area
5.3776917850764E+15
Circumference
129978909.84797
Perimeter
82747144
Area
427943115009796
Diagonal
29255533.32311
Surface area
2567658690058776
Volume
8.852767640381E+21
Space diagonal
35830564.397305
Perimeter
62060358
Area
1.8530480448656E+14
Altitude
17915282.198652
Surface area
1.8530480448656E+14
Volume
1.043308671797E+21
Height
9751844.4410366