20789987 is an odd 8-digits composite number following 20789986
and preceding 20789988 . In scientific notation, it is written as 2.0789987 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 20754336 positive integers (up to 20789987) that are relatively prime to 20789987.
20789987 has 4 divisors, whose sum is 20825640
The reverse of 20789987 is 78998702
Previous prime number is 593
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty million seven hundred eighty-nine thousand nine hundred eighty-seven
Scientific notation
2.0789987 × 10^7
Engineering notation
2.0789987 × 10^6
Prime Factorization
593 × 35059
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20789987
Product of the distinct prime numbers
The prime factorization of 20789987 is 593 × 35059.
Since it has a total of 2 prime factors.
2 , 10 , 85 , 39 , 765 , 356 , 3161 , 6228 , 36867 , 58087 , 7337 , 680274 , 3283654 , 4167005 , 96841993 , 6859633 , 514377949 , 590277814 , 9634323517 , 2088730749
n×2
41579974
n×3
62369961
n×4
83159948
n×5
103949935
n÷2
10394993.5
n÷3
6929995.6666667
n÷3
5197496.75
n÷5
4157997.4
n2
432223559460169
n3
8.9859221822706E+21
n4
1.8681720535242E+29
n5
3.8839272706531E+36
2 √n
4559.603820509
3 √n
274.96963631699
4 √n
67.524838544857
5 √n
29.078422576123
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20789986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20789987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20789987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010011101011100011
3
Ternary
1110010020111112
4
Quaternary
1033103223203
5
Quinary
20310234422
6
Senary
2021333535
8
Octal
117235343
10
Decimal
20789987
12
Duodecimal
6b672ab
16
Hexadecimal
13d3ae3
20
Vigesimal
69iej7
36
Base36
cdlnn
md5
3f355a07c6e9b17cd9963e83589005ed
sha1
275a9cf6b2387f5144f0964f09d229a9cdfb0e6c
sha256
0b7ddff8934464d098714704ffef45517727be81838785eb8c95d4803c15c0b0
sha512
969a74448c5adb9d28494103eaa70e8347224490f91dfd2b10752e4ba885e366e3455acb917e9bbb0b460c9f71e0faa00ca47a93452fd62517d0244197d62260
ripemd-160
b9e84489bbbd634affd871fd33ba7f6ecb53c8de
Diameter
41579974
Circumference
130627340.85485
Area
1.3578703591085E+15
Volume
3.7640142818068E+22
Surface area
5.431481436434E+15
Circumference
130627340.85485
Perimeter
83159948
Area
432223559460169
Diagonal
29401481.57696
Surface area
2593341356761014
Volume
8.9859221822706E+21
Space diagonal
36009313.772696
Perimeter
62369961
Area
1.8715829130332E+14
Altitude
18004656.886348
Surface area
1.8715829130332E+14
Volume
1.0590010850497E+21
Height
9800493.8589868