20687769 is an odd 8-digits composite number following 20687768
and preceding 20687770 . In scientific notation, it is written as 2.0687769 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 6 positive divisors.
There are 13791840 positive integers (up to 20687769) that are relatively prime to 20687769.
20687769 has 6 divisors, whose sum is 29882346
The reverse of 20687769 is 96778602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million six hundred eighty-seven thousand seven hundred sixty-nine
Scientific notation
2.0687769 × 10^7
Engineering notation
2.0687769 × 10^6
Prime Factorization
3 × 3 × 2298641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6895923
Product of the distinct prime numbers
The prime factorization of 20687769 is 3 × 3 × 2298641.
Since it has a total of 3 prime factors.
2 , 3 , 75 , 4 , 197 , 191 , 2067 , 1583 , 78360 , 53410 , 121974 , 256868 , 4494912 , 464841 , 53294017 , 24127821 , 643529140 , 406610115 , 913671744 , 4453436926
n×2
41375538
n×3
62063307
n×4
82751076
n×5
103438845
n÷2
10343884.5
n÷3
6895923
n÷3
5171942.25
n÷5
4137553.8
n2
427983786197361
n3
8.8540297045964E+21
n4
1.8317012124783E+29
n5
3.7893811560771E+36
2 √n
4548.3809207233
3 √n
274.51824856038
4 √n
67.441685334245
5 √n
29.04977223465
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20687768
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20687769 can be divided by 6 positive divisors.
The sum of these divisors (counting 20687769) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001110111010101110011001
3
Ternary
1102221001021200
4
Quaternary
1032322232121
5
Quinary
20244002034
6
Senary
2015224413
8
Octal
116725631
10
Decimal
20687769
12
Duodecimal
6b18109
16
Hexadecimal
13bab99
20
Vigesimal
695j89
36
Base36
cbes9
md5
750ab6c6ec804b72cffab16c3c485b1d
sha1
31621fe99f56b750d0a543f02b517f11383edfa4
sha256
35e92267675f2b3bea1bab21415094814e9582abca39d72c54ab8a2616cab467
sha512
7b79ebde2cca449d5bbd4767b83a7e025b6aedd1c9a225e5960f592f6c81115a043a8225f960845d0e9305196cfb5a36b0516b17087bb2ffe86c6959dbf256fd
ripemd-160
be6e490c7b0d02ffb36e2551b101899c698a6cc1
Diameter
41375538
Circumference
129985086.21913
Area
1.3445507185732E+15
Volume
3.7087672899501E+22
Surface area
5.3782028742927E+15
Circumference
129985086.21913
Perimeter
82751076
Area
427983786197361
Diagonal
29256923.495042
Surface area
2567902717184166
Volume
8.8540297045964E+21
Space diagonal
35832267.003248
Perimeter
62063307
Area
1.8532241562738E+14
Altitude
17916133.501624
Surface area
1.8532241562738E+14
Volume
1.0434574074912E+21
Height
9752307.8316806