20168729 is an odd 8-digits composite number following 20168728
and preceding 20168730 . In scientific notation, it is written as 2.0168729 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 17160480 positive integers (up to 20168729) that are relatively prime to 20168729.
20168729 has 8 divisors, whose sum is 23219328
The reverse of 20168729 is 92786102
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million one hundred sixty-eight thousand seven hundred twenty-nine
Scientific notation
2.0168729 × 10^7
Engineering notation
2.0168729 × 10^6
Prime Factorization
7 × 137 × 21031
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20168729
Product of the distinct prime numbers
The prime factorization of 20168729 is 7 × 137 × 21031.
Since it has a total of 3 prime factors.
1 , 3 , 23 , 49 , 727 , 993 , 4452 , 7997 , 12105 , 66438 , 783766 , 238423 , 3472673 , 164721 , 54826431 , 81580892 , 384287920 , 240666254 , 3428705359 , 4723380298
n×2
40337458
n×3
60506187
n×4
80674916
n×5
100843645
n÷2
10084364.5
n÷3
6722909.6666667
n÷3
5042182.25
n÷5
4033745.8
n2
406777629475441
n3
8.2041877721526E+21
n4
1.6546803984166E+29
n5
3.3372800537276E+36
2 √n
4490.9608103389
3 √n
272.20296000192
4 √n
67.014631315399
5 √n
28.902519715734
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
-20168728
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 20168729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20168729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111100000000011001
3
Ternary
1101221200021222
4
Quaternary
1030330000121
5
Quinary
20130344404
6
Senary
2000141425
8
Octal
114740031
10
Decimal
20168729
12
Duodecimal
6907875
16
Hexadecimal
133c019
20
Vigesimal
6611g9
36
Base36
c0aah
md5
a1ac03b5dde0e357a206295ec8512b2a
sha1
de8f748aa68f73a581a69d3716487bd54cdb2357
sha256
0910b9c2bc2d73399f11e777519657bcb82c27232de2fc1a4320c470570e3875
sha512
1cb23999ae7fe8cb9b3c579ddf42b12f1e31e20e78989835c9ba73c30aef83d07791ef6548dc8e3fb16844efb9a1ad4e54ae9f2b0745bfcb7e452c20b8a881fa
ripemd-160
6debe3ce5c8b3cff775829e4820500fe5ea16bec
Diameter
40337458
Circumference
126723861.71729
Area
1.2779296124047E+15
Volume
3.4365621378221E+22
Surface area
5.1117184496189E+15
Circumference
126723861.71729
Perimeter
80674916
Area
406777629475441
Diagonal
28522890.087628
Surface area
2440665776852646
Volume
8.2041877721526E+21
Space diagonal
34933263.352088
Perimeter
60506187
Area
1.7613988040847E+14
Altitude
17466631.676044
Surface area
1.7613988040847E+14
Volume
9.6687280130281E+20
Height
9507630.0292092