20789987 (number)

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.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-nine thousand nine hundred eighty-seven

Notation

Scientific notation 2.0789987 × 10^7
Engineering notation 2.0789987 × 10^6

Prime Factorization of 20789987

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.

Most popular turbo-numbers

Basic calculations (n = 20789987)

Multiplication

n×y
n×2 41579974
n×3 62369961
n×4 83159948
n×5 103949935

Division

n÷y
n÷2 10394993.5
n÷3 6929995.6666667
n÷3 5197496.75
n÷5 4157997.4

Exponentiation

ny
n2 432223559460169
n3 8.9859221822706E+21
n4 1.8681720535242E+29
n5 3.8839272706531E+36

Nth Root

y√n
2√n 4559.603820509
3√n 274.96963631699
4√n 67.524838544857
5√n 29.078422576123

Divisors of 20789987

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 conversion 20789987

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

Cryptographic Hash Functions

md5 3f355a07c6e9b17cd9963e83589005ed
sha1 275a9cf6b2387f5144f0964f09d229a9cdfb0e6c
sha256 0b7ddff8934464d098714704ffef45517727be81838785eb8c95d4803c15c0b0
sha512 969a74448c5adb9d28494103eaa70e8347224490f91dfd2b10752e4ba885e366e3455acb917e9bbb0b460c9f71e0faa00ca47a93452fd62517d0244197d62260
ripemd-160 b9e84489bbbd634affd871fd33ba7f6ecb53c8de

20789987 as geometric shapes

Circle

Radius = n
Diameter 41579974
Circumference 130627340.85485
Area 1.3578703591085E+15

Sphere

Radius = n
Volume 3.7640142818068E+22
Surface area 5.431481436434E+15
Circumference 130627340.85485

Square

Length = n
Perimeter 83159948
Area 432223559460169
Diagonal 29401481.57696

Cube

Length = n
Surface area 2593341356761014
Volume 8.9859221822706E+21
Space diagonal 36009313.772696

Equilateral Triangle

Length = n
Perimeter 62369961
Area 1.8715829130332E+14
Altitude 18004656.886348

Triangular Pyramid

Length = n
Surface area 1.8715829130332E+14
Volume 1.0590010850497E+21
Height 9800493.8589868