20688340 is an even 8-digits composite number following 20688339
and preceding 20688341 . In scientific notation, it is written as 2.0688340 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 7839648 positive integers (up to 20688340) that are relatively prime to 20688340.
20688340 has 12 divisors, whose sum is 36586368
The reverse of 20688340 is 04388602
Previous prime number is 95
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million six hundred eighty-eight thousand three hundred forty
Scientific notation
2.0688340 × 10^7
Engineering notation
2.0688340 × 10^6
Prime Factorization
2 × 2 × 95 × 54443
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10344170
Product of the distinct prime numbers
The prime factorization of 20688340 is 2 × 2 × 95 × 54443.
Since it has a total of 4 prime factors.
1 , 8 , 33 , 21 , 660 , 206 , 2622 , 3793 , 8417 , 29963 , 558431 , 354317 , 7802392 , 7728636 , 98122102 , 69139141 , 307993526 , 621836286 , 4832185932 , 9570148674
n×2
41376680
n×3
62065020
n×4
82753360
n×5
103441700
n÷2
10344170
n÷3
6896113.3333333
n÷3
5172085
n÷5
4137668
n2
428007411955600
n3
8.8547628610575E+21
n4
1.8319034468893E+29
n5
3.7899041356418E+36
2 √n
4548.443689879
3 √n
274.52077418277
4 √n
67.442150691381
5 √n
29.049932592558
1 , 2 , 4 , 95 , 190 , 380 , 54443 , 108886 , 217772 , 5172085 , 10344170 , 20688340
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
-20688339
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 20688340 can be divided by 12 positive divisors.
The sum of these divisors (counting 20688340) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110111010110111010100
3
Ternary
1102221002001211
4
Quaternary
1032322313110
5
Quinary
20244011330
6
Senary
2015231204
8
Octal
116726724
10
Decimal
20688340
12
Duodecimal
6b18504
16
Hexadecimal
13badd4
20
Vigesimal
6960h0
36
Base36
cbf84
md5
7398ca7517d3a63bd63679f3180a0923
sha1
1a34cc1ceba23053de3588f439c630f1d2c7f821
sha256
162427d94931e09d5e2ed8eed2c22465aeefdd5ce829c7bf1ea5632619c1a90a
sha512
e675ab042f20b2807d60eb6d3f9ed33208fe7f8b8ceaa224dfe70250301e558b12eea8cb6385780f9aab076d4ec6b9539630bbe7f5e4b83349ff8a11fb94e535
ripemd-160
5032404fb53c9524c38c3d7e67e9b53cbf912215
Diameter
41376680
Circumference
129988673.91794
Area
1.3446249410817E+15
Volume
3.7090743938104E+22
Surface area
5.3784997643268E+15
Circumference
129988673.91794
Perimeter
82753360
Area
428007411955600
Diagonal
29257731.010986
Surface area
2568044471733600
Volume
8.8547628610575E+21
Space diagonal
35833256.00426
Perimeter
62065020
Area
1.8533264588079E+14
Altitude
17916628.00213
Surface area
1.8533264588079E+14
Volume
1.0435438108088E+21
Height
9752577.0036619