20688087 is an odd 8-digits composite number following 20688086
and preceding 20688088 . In scientific notation, it is written as 2.0688087 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 11793600 positive integers (up to 20688087) that are relatively prime to 20688087.
20688087 has 8 divisors, whose sum is 21724912
The reverse of 20688087 is 78088602
Previous prime number is 1801
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred eighty-eight thousand eighty-seven
Scientific notation
2.0688087 × 10^7
Engineering notation
2.0688087 × 10^6
Prime Factorization
21 × 1801 × 547
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20688087
Product of the distinct prime numbers
The prime factorization of 20688087 is 21 × 1801 × 547.
Since it has a total of 3 prime factors.
5 , 4 , 37 , 19 , 109 , 799 , 544 , 9707 , 42241 , 96635 , 511369 , 120320 , 6404247 , 1660194 , 24233761 , 86989635 , 219959908 , 461883271 , 1527611429 , 1542931256
n×2
41376174
n×3
62064261
n×4
82752348
n×5
103440435
n÷2
10344043.5
n÷3
6896029
n÷3
5172021.75
n÷5
4137617.4
n2
427996943719569
n3
8.8544380074045E+21
n4
1.8318138383329E+29
n5
3.7896724055235E+36
2 √n
4548.4158780833
3 √n
274.5196551299
4 √n
67.441944501054
5 √n
29.049861541242
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20688086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20688087 can be divided by 8 positive divisors.
The sum of these divisors (counting 20688087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010110011010111
3
Ternary
1102221001201110
4
Quaternary
1032322303113
5
Quinary
20244004322
6
Senary
2015230103
8
Octal
116726327
10
Decimal
20688087
12
Duodecimal
6b18333
16
Hexadecimal
13bacd7
20
Vigesimal
696047
36
Base36
cbf13
md5
93a875914b82db82ca42d23bdd8c510f
sha1
35985ee5253afb29b43ac1398deee9c2129612a0
sha256
22e7a224107fbdbfbc553f391f54e20013f5e9e8a94d4a43599469251c3e8569
sha512
c3183ee6783351db9ed3dedbb97cf3e8da232273f34a9fb598f708b1e4e00312459e7f5183049f41ff6217042cd7de3e0633b82b50db79d5dc99c65a30c6e0d9
ripemd-160
2eb5147ed3fdf34360fa80d3c1d2d61b32a3cba8
Diameter
41376174
Circumference
129987084.27205
Area
1.3445920541483E+15
Volume
3.7089383194304E+22
Surface area
5.3783682165931E+15
Circumference
129987084.27205
Perimeter
82752348
Area
427996943719569
Diagonal
29257373.214955
Surface area
2567981662317414
Volume
8.8544380074045E+21
Space diagonal
35832817.795405
Perimeter
62064261
Area
1.8532811300162E+14
Altitude
17916408.897703
Surface area
1.8532811300162E+14
Volume
1.0435055264386E+21
Height
9752457.7383182