20487729 is an odd 8-digits composite number following 20487728
and preceding 20487730 . In scientific notation, it is written as 2.0487729 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13454496 positive integers (up to 20487729) that are relatively prime to 20487729.
20487729 has 8 divisors, whose sum is 27724960
The reverse of 20487729 is 92778402
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million four hundred eighty-seven thousand seven hundred twenty-nine
Scientific notation
2.0487729 × 10^7
Engineering notation
2.0487729 × 10^6
Prime Factorization
3 × 67 × 101929
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20487729
Product of the distinct prime numbers
The prime factorization of 20487729 is 3 × 67 × 101929.
Since it has a total of 3 prime factors.
9 , 9 , 41 , 15 , 358 , 107 , 2935 , 80 , 24341 , 61229 , 570077 , 557187 , 8132005 , 4091706 , 39436633 , 16094130 , 993875708 , 838111041 , 2087071372 , 8141418986
n×2
40975458
n×3
61463187
n×4
81950916
n×5
102438645
n÷2
10243864.5
n÷3
6829243
n÷3
5121932.25
n÷5
4097545.8
n2
419747039577441
n3
8.5996635954149E+21
n4
1.7618757723403E+29
n5
3.6096833355373E+36
2 √n
4526.337260965
3 √n
273.6305648585
4 √n
67.278059283581
5 √n
28.993374428583
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
-20487728
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 20487729 can be divided by 8 positive divisors.
The sum of these divisors (counting 20487729) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001001111000110001
3
Ternary
1102112212212210
4
Quaternary
1032021320301
5
Quinary
20221101404
6
Senary
2011042333
8
Octal
116117061
10
Decimal
20487729
12
Duodecimal
6a403a9
16
Hexadecimal
1389e31
20
Vigesimal
680j69
36
Base36
c74fl
md5
d04fb546c08a304d1bf724995f886fa8
sha1
3bed6b465b4663651bd1903bce39b4e31459c395
sha256
e93bdad97fe53857eeb10b54783616f133b1c80176483bedce7b3221cf5d9f6f
sha512
5553c8fa072abee8fb2a018d1f1902a645171f5928a4ede847c95e407e6c9a0f7e88fbe6ba11b43e22006a117f0aeb8a82b077a9050a89d731b2eb936914dc37
ripemd-160
6db7f70d5aed93912396c290936936435ea34df6
Diameter
40975458
Circumference
128728197.83028
Area
1.3186742159026E+15
Volume
3.6022186632932E+22
Surface area
5.2746968636102E+15
Circumference
128728197.83028
Perimeter
81950916
Area
419747039577441
Diagonal
28974024.214025
Surface area
2518482237464646
Volume
8.5996635954149E+21
Space diagonal
35485787.559702
Perimeter
61463187
Area
1.8175579971869E+14
Altitude
17742893.779851
Surface area
1.8175579971869E+14
Volume
1.0134800740402E+21
Height
9658008.0713415