20687429 is an odd 8-digits composite number following 20687428
and preceding 20687430 . In scientific notation, it is written as 2.0687429 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 17319456 positive integers (up to 20687429) that are relatively prime to 20687429.
20687429 has 8 divisors, whose sum is 24192960
The reverse of 20687429 is 92478602
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million six hundred eighty-seven thousand four hundred twenty-nine
Scientific notation
2.0687429 × 10^7
Engineering notation
2.0687429 × 10^6
Prime Factorization
7 × 43 × 68729
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20687429
Product of the distinct prime numbers
The prime factorization of 20687429 is 7 × 43 × 68729.
Since it has a total of 3 prime factors.
7 , 10 , 60 , 70 , 743 , 130 , 6873 , 2381 , 82096 , 99084 , 605997 , 787153 , 380343 , 3920326 , 32146490 , 99252537 , 39837299 , 4940764 , 1939612873 , 536680001
n×2
41374858
n×3
62062287
n×4
82749716
n×5
103437145
n÷2
10343714.5
n÷3
6895809.6666667
n÷3
5171857.25
n÷5
4137485.8
n2
427969718630041
n3
8.853593168309E+21
n4
1.8315808006428E+29
n5
3.789069777106E+36
2 √n
4548.3435446325
3 √n
274.51674466508
4 √n
67.441408234352
5 √n
29.049676748399
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
-20687428
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 20687429 can be divided by 8 positive divisors.
The sum of these divisors (counting 20687429) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111010101001000101
3
Ternary
1102221000211002
4
Quaternary
1032322221011
5
Quinary
20243444204
6
Senary
2015223045
8
Octal
116725105
10
Decimal
20687429
12
Duodecimal
6b17a85
16
Hexadecimal
13baa45
20
Vigesimal
695ib9
36
Base36
cbeit
md5
e9ece790e9741aefe2accb4e6d5c179e
sha1
abf656bd7adb3ce3fc9bf9be1a7bcc2852275552
sha256
0243882c3589ab6b4f5913dbbe02426ccd1b34615f8dfb7e11367174dd46e0fc
sha512
7a95da174c82826d8c76577a749f5cf09d9d29c58163f2a797aba02be50b8fa700c2ce99c269aa891caa37cfa37693cffab69b360bf22290d4b2c289ff24045d
ripemd-160
1529edf1721d2843bd1ed63fa0664178d72f6c90
Diameter
41374858
Circumference
129982949.93612
Area
1.344506524007E+15
Volume
3.7085844340576E+22
Surface area
5.3780260960281E+15
Circumference
129982949.93612
Perimeter
82749716
Area
427969718630041
Diagonal
29256442.66243
Surface area
2567818311780246
Volume
8.853593168309E+21
Space diagonal
35831678.105974
Perimeter
62062287
Area
1.8531632419205E+14
Altitude
17915839.052987
Surface area
1.8531632419205E+14
Volume
1.0434059611964E+21
Height
9752147.5541435