20685729 is an odd 8-digits composite number following 20685728
and preceding 20685730 . In scientific notation, it is written as 2.0685729 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13314896 positive integers (up to 20685729) that are relatively prime to 20685729.
20685729 has 8 divisors, whose sum is 28532160
The reverse of 20685729 is 92758602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million six hundred eighty-five thousand seven hundred twenty-nine
Scientific notation
2.0685729 × 10^7
Engineering notation
2.0685729 × 10^6
Prime Factorization
29 × 3 × 237767
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20685729
Product of the distinct prime numbers
The prime factorization of 20685729 is 29 × 3 × 237767.
Since it has a total of 3 prime factors.
6 , 4 , 1 , 61 , 336 , 936 , 4487 , 4236 , 22110 , 86670 , 75196 , 651260 , 9753214 , 5568382 , 59401870 , 38423532 , 106073693 , 867113480 , 5457589686 , 948584461
n×2
41371458
n×3
62057187
n×4
82742916
n×5
103428645
n÷2
10342864.5
n÷3
6895243
n÷3
5171432.25
n÷5
4137145.8
n2
427899384261441
n3
8.851410702099E+21
n4
1.8309788305132E+29
n5
3.7875131892733E+36
2 √n
4548.156659571
3 √n
274.50922494139
4 √n
67.440022683648
5 √n
29.049199298313
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
-20685728
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 20685729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20685729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010001110100001
3
Ternary
1102220221111010
4
Quaternary
1032322032201
5
Quinary
20243420404
6
Senary
2015211133
8
Octal
116721641
10
Decimal
20685729
12
Duodecimal
6b16aa9
16
Hexadecimal
13ba3a1
20
Vigesimal
695e69
36
Base36
cbd7l
md5
db03cfb08e516a36b5048442b19f8a32
sha1
9a61e72da8476280183ec675b3170a2dead9ddd3
sha256
1646cb1ac6a47c4d68dad78259921d1946e88c39d809cb3761a2aec9ceff4ccf
sha512
dc054cced1f67b9861d61acd8510516af486ca8bf1ed7d20108b49aa56f015c4199e903cc44e6477b5127a9015a9c0f40e8a35efd9a204b7f79210ab62eb3adc
ripemd-160
61baaa45e2eb67bcef3c5e57d2a8f5320cc05657
Diameter
41371458
Circumference
129972268.5211
Area
1.3442855620713E+15
Volume
3.7076702447494E+22
Surface area
5.3771422482854E+15
Circumference
129972268.5211
Perimeter
82742916
Area
427899384261441
Diagonal
29254038.499374
Surface area
2567396305568646
Volume
8.851410702099E+21
Space diagonal
35828733.619601
Perimeter
62057187
Area
1.8528586851706E+14
Altitude
17914366.8098
Surface area
1.8528586851706E+14
Volume
1.0431487550869E+21
Height
9751346.1664581