20681729 is an odd 8-digits composite number following 20681728
and preceding 20681730 . In scientific notation, it is written as 2.0681729 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20634180 positive integers (up to 20681729) that are relatively prime to 20681729.
20681729 has 4 divisors, whose sum is 20729280
The reverse of 20681729 is 92718602
Previous prime number is 439
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million six hundred eighty-one thousand seven hundred twenty-nine
Scientific notation
2.0681729 × 10^7
Engineering notation
2.0681729 × 10^6
Prime Factorization
439 × 47111
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20681729
Product of the distinct prime numbers
The prime factorization of 20681729 is 439 × 47111.
Since it has a total of 2 prime factors.
7 , 10 , 64 , 59 , 49 , 167 , 3353 , 1190 , 95308 , 18932 , 146535 , 561516 , 7323935 , 1443608 , 63560107 , 90363702 , 756281192 , 380835536 , 9126115296 , 9765409797
n×2
41363458
n×3
62045187
n×4
82726916
n×5
103408645
n÷2
10340864.5
n÷3
6893909.6666667
n÷3
5170432.25
n÷5
4136345.8
n2
427733914429441
n3
8.8462769023389E+21
n4
1.8295630155313E+29
n5
3.7838526475642E+36
2 √n
4547.7168997201
3 √n
274.49152984858
4 √n
67.436762227439
5 √n
29.048075762509
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20681728
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681729 can be divided by 4 positive divisors.
The sum of these divisors (counting 20681729) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111001010000000001
3
Ternary
1102220201222222
4
Quaternary
1032321100001
5
Quinary
20243303404
6
Senary
2015140425
8
Octal
116712001
10
Decimal
20681729
12
Duodecimal
6b14715
16
Hexadecimal
13b9401
20
Vigesimal
695469
36
Base36
cba4h
md5
3723130bb3bd0ec552e74fc52d4f6325
sha1
5d1224a29dd0283f309aef0db91663decec49b96
sha256
735483c22f83814520052de6b8fe9f45158c7b8ca89be88125604884437213e3
sha512
683135a2bbb7a5dee0c762c4a38af287b880c439a332e34098f1ae3d5a4c3024632c53a60cad95db5b46d1445ffba03d12a7b7425c84bfc75b3d0fc70875d9b7
ripemd-160
5a994b4dd347b3b2ea6afc5b77a1e5bd75aec07f
Diameter
41363458
Circumference
129947135.77987
Area
1.3437657232627E+15
Volume
3.7055198037345E+22
Surface area
5.3750628930509E+15
Circumference
129947135.77987
Perimeter
82726916
Area
427733914429441
Diagonal
29248381.645125
Surface area
2566403486576646
Volume
8.8462769023389E+21
Space diagonal
35821805.416371
Perimeter
62045187
Area
1.8521421797803E+14
Altitude
17910902.708185
Surface area
1.8521421797803E+14
Volume
1.042543730983E+21
Height
9749460.548375