20787 (number)

20787 is an odd 5-digits composite number following 20786 and preceding 20788. In scientific notation, it is written as 2.0787 × 10^4. The sum of its digits is 24. It has a total of 4 prime factors and 12 positive divisors. There are 12480 positive integers (up to 20787) that are relatively prime to 20787.

Interesting facts

Basic properties

Name

Name twenty thousand seven hundred eighty-seven

Notation

Scientific notation 2.0787 × 10^4
Engineering notation 2.0787 × 10^3

Prime Factorization of 20787

Prime Factorization 13 × 3 × 13 × 41

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1599
Product of the distinct prime numbers

The prime factorization of 20787 is 13 × 3 × 13 × 41. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 27, 45, 189, 563, 1447, 5309, 15007, 45961, 270488, 900632, 6709297, 2793891, 92364439, 5753045, 532254662, 435378205, 2244122900, 2759623078

Basic calculations (n = 20787)

Multiplication

n×y
n×2 41574
n×3 62361
n×4 83148
n×5 103935

Division

n÷y
n÷2 10393.5
n÷3 6929
n÷3 5196.75
n÷5 4157.4

Exponentiation

ny
n2 432099369
n3 8982049583403
n4 186709864690198161
n5 3.8811379573151E+21

Nth Root

y√n
2√n 144.17697458332
3√n 27.495646693819
4√n 12.007371676738
5√n 7.3039596145897

Divisors of 20787

1, 3, 13, 39, 41, 123, 169, 507, 533, 1599, 6929, 20787

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20786
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20787 can be divided by 12 positive divisors. The sum of these divisors (counting 20787) is 1, the average is 0.083333333333333.

Base conversion 20787

Base System Value
2 Binary 101000100110011
3 Ternary 1001111220
4 Quaternary 11010303
5 Quinary 1131122
6 Senary 240123
8 Octal 50463
10 Decimal 20787
12 Duodecimal 10043
16 Hexadecimal 5133
20 Vigesimal 2bj7
36 Base36 g1f

Cryptographic Hash Functions

md5 a1f46c591a7f820502944b52ab87e7ee
sha1 9d0298f96c286ae313d2417d360ed8fea725ecba
sha256 4feb8ced9e8632672491e2c5820704dd137d9f625897bba5328cc385dc58ae76
sha512 0d319197a5b99ba18001e2d56d5ab162976fceb7458b0bebebecccbdea920abe3dee47f2cb45eeac8d746febc49977b006dea26fb6ddeb5dcfae30a02bc56bcd
ripemd-160 2025066c5e19120f7bc9cb4ad5f6a9a513c7a42a

20787 as geometric shapes

Circle

Radius = n
Diameter 41574
Circumference 130608.57298034
Area 1357480203.2712

Sphere

Radius = n
Volume 37623921313864
Surface area 5429920813.0847
Circumference 130608.57298034

Square

Length = n
Perimeter 83148
Area 432099369
Diagonal 29397.25732105

Cube

Length = n
Surface area 2592596214
Volume 8982049583403
Space diagonal 36004.140136934

Equilateral Triangle

Length = n
Perimeter 62361
Area 187104515.25661
Altitude 18002.070068467

Triangular Pyramid

Length = n
Surface area 187104515.25661
Volume 1058544694896.3
Height 9799.0857736832