20405729 is an odd 8-digits composite number following 20405728
and preceding 20405730 . In scientific notation, it is written as 2.0405729 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 19166976 positive integers (up to 20405729) that are relatively prime to 20405729.
20405729 has 8 divisors, whose sum is 21649320
The reverse of 20405729 is 92750402
Previous prime number is 1693
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million four hundred five thousand seven hundred twenty-nine
Scientific notation
2.0405729 × 10^7
Engineering notation
2.0405729 × 10^6
Prime Factorization
17 × 1693 × 709
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20405729
Product of the distinct prime numbers
The prime factorization of 20405729 is 17 × 1693 × 709.
Since it has a total of 3 prime factors.
7 , 8 , 99 , 91 , 670 , 366 , 3839 , 2447 , 10165 , 48280 , 927996 , 786868 , 856965 , 327007 , 28969316 , 17682744 , 861031859 , 739298665 , 6167523784 , 7151541672
n×2
40811458
n×3
61217187
n×4
81622916
n×5
102028645
n÷2
10202864.5
n÷3
6801909.6666667
n÷3
5101432.25
n÷5
4081145.8
n2
416393776021441
n3
8.4968185507802E+21
n4
1.7338377670939E+29
n5
3.5380223605284E+36
2 √n
4517.2700826937
3 √n
273.26501746314
4 √n
67.210639653955
5 √n
28.970128591251
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
-20405728
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 20405729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20405729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101110101110111100001
3
Ternary
1102101201101202
4
Quaternary
1031311313201
5
Quinary
20210440404
6
Senary
2005210545
8
Octal
115656741
10
Decimal
20405729
12
Duodecimal
6a00a55
16
Hexadecimal
1375de1
20
Vigesimal
67ae69
36
Base36
c5d5t
md5
548618c9fb568b39ae3abb27d4035d39
sha1
ea89830a676d443fc9bffdd0aada933a36e09207
sha256
b8f5c919bc3fc85ee0c62c7619183898805feaf85839e1c41e97351b96f4f990
sha512
96b87d56da94f5c7f2077259e4b164bc1e363e1a26f72ec5351d835a5c6dfdc88b8d896a59f94f81f84cc24f3e40f4a819cab6613a22d20f62562809025fe985
ripemd-160
dde9361d624da0328344cbbab689f93d682a6a67
Diameter
40811458
Circumference
128212976.63509
Area
1.3081396277495E+15
Volume
3.5591390317355E+22
Surface area
5.2325585109979E+15
Circumference
128212976.63509
Perimeter
81622916
Area
416393776021441
Diagonal
28858058.70191
Surface area
2498362656128646
Volume
8.4968185507802E+21
Space diagonal
35343759.393482
Perimeter
61217187
Area
1.8030379400615E+14
Altitude
17671879.696741
Surface area
1.8030379400615E+14
Volume
1.0013596692947E+21
Height
9619352.9006367