20687568 is an even 8-digits composite number following 20687567
and preceding 20687569 . In scientific notation, it is written as 2.0687568 × 10^7.
The sum of its digits is 42. It has a total of 6 prime factors and 20 positive divisors.
There are 6268800 positive integers (up to 20687568) that are relatively prime to 20687568.
20687568 has 20 divisors, whose sum is 41297828
The reverse of 20687568 is 86578602
Previous prime number is 33
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million six hundred eighty-seven thousand five hundred sixty-eight
Scientific notation
2.0687568 × 10^7
Engineering notation
2.0687568 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 33 × 39181
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2585946
Product of the distinct prime numbers
The prime factorization of 20687568 is 2 × 2 × 2 × 2 × 33 × 39181.
Since it has a total of 6 prime factors.
5 , 10 , 50 , 75 , 827 , 495 , 3111 , 8956 , 64837 , 64021 , 122534 , 520892 , 8658299 , 697359 , 74931028 , 28626941 , 647228996 , 557360011 , 6320187662 , 4963761206
n×2
41375136
n×3
62062704
n×4
82750272
n×5
103437840
n÷2
10343784
n÷3
6895856
n÷3
5171892
n÷5
4137513.6
n2
427975469754624
n3
8.8537716328807E+21
n4
1.8316300271169E+29
n5
3.7891970736823E+36
2 √n
4548.358824895
3 √n
274.51735949485
4 √n
67.441521519721
5 √n
29.049715785577
1 , 2 , 4 , 8 , 16 , 33 , 66 , 132 , 264 , 528 , 39181 , 78362 , 156724 , 313448 , 626896 , 1292973 , 2585946 , 5171892 , 10343784 , 20687568
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687567
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687568 can be divided by 20 positive divisors.
The sum of these divisors (counting 20687568) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001110111010101011010000
3
Ternary
1102221001000020
4
Quaternary
1032322223100
5
Quinary
20244000233
6
Senary
2015223440
8
Octal
116725320
10
Decimal
20687568
12
Duodecimal
6b17b80
16
Hexadecimal
13baad0
20
Vigesimal
695ii8
36
Base36
cbemo
md5
4e27704385f6e784be06b266a3bd79c2
sha1
6add9effa5ddc03c49450a36bd3ffd0c2f5fbc60
sha256
9e81c9dcd3e2f8551972c0d5111479f379a0abd3e2e18d73408ff6b9d4127ca8
sha512
8788c98b62021dd8240acc158c1b614eb77a01c8d0f88509757bad095d5069d6bfffb506a2c56653d601f7ee8cae3f1363fcdacc4f208881482c8fcc6728e59e
ripemd-160
2c838fa63170543daccac62a333824c0e8968093
Diameter
41375136
Circumference
129983823.29888
Area
1.3445245916978E+15
Volume
3.7086591891226E+22
Surface area
5.3780983667911E+15
Circumference
129983823.29888
Perimeter
82750272
Area
427975469754624
Diagonal
29256639.238116
Surface area
2567852818527744
Volume
8.8537716328807E+21
Space diagonal
35831918.861036
Perimeter
62062704
Area
1.8531881450204E+14
Altitude
17915959.430518
Surface area
1.8531881450204E+14
Volume
1.0434269934478E+21
Height
9752213.0793719