21087513 (number)

21087513 is an odd 8-digits composite number following 21087512 and preceding 21087514. In scientific notation, it is written as 2.1087513 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 13847328 positive integers (up to 21087513) that are relatively prime to 21087513.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand five hundred thirteen

Notation

Scientific notation 2.1087513 × 10^7
Engineering notation 2.1087513 × 10^6

Prime Factorization of 21087513

Prime Factorization 9 × 3 × 67 × 11657

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21087513
Product of the distinct prime numbers

The prime factorization of 21087513 is 9 × 3 × 67 × 11657. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 3, 24, 40, 384, 867, 9775, 2848, 37407, 1150, 306817, 21701, 4983775, 7577575, 71958455, 75566155, 763328396, 575290979, 2987169811, 9601910885

Basic calculations (n = 21087513)

Multiplication

n×y
n×2 42175026
n×3 63262539
n×4 84350052
n×5 105437565

Division

n÷y
n÷2 10543756.5
n÷3 7029171
n÷3 5271878.25
n÷5 4217502.6

Exponentiation

ny
n2 444683204525169
n3 9.3772628563062E+21
n4 1.9774315238677E+29
n5 4.1699112966171E+36

Nth Root

y√n
2√n 4592.1142189628
3√n 276.27512735273
4√n 67.765140145673
5√n 29.161178592944

Divisors of 21087513

1, 3, 9, 27, 67, 201, 603, 1809, 11657, 34971, 104913, 314739, 781019, 2343057, 7029171, 21087513

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087512
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087513 can be divided by 16 positive divisors. The sum of these divisors (counting 21087513) is 1, the average is 0.0625.

Base conversion 21087513

Base System Value
2 Binary 1010000011100010100011001
3 Ternary 1110200100122000
4 Quaternary 1100130110121
5 Quinary 20344300023
6 Senary 2031551213
8 Octal 120342431
10 Decimal 21087513
12 Duodecimal 708b509
16 Hexadecimal 141c519
20 Vigesimal 6bfifd
36 Base36 cjz89

Cryptographic Hash Functions

md5 a139880cf1e34c15ab7c977fd02d8c19
sha1 f959eb7c6629e1b88e91bc46b6b6f7b7eecde4d6
sha256 f3a9b1a6c71a2a535020aea0786ec2d7f60e5d27ce89e6c56d663b084a4afdb6
sha512 2386821e09e47382533517e5d166e0bbec7c90c49b4b1c84b828f644dfa41fc2fb94f79d9a62f8df084741eca293d15d7d15a799c498ebbc702e86df47078983
ripemd-160 cdcdea95370eb606f6745d106be384f7c9b63759

21087513 as geometric shapes

Circle

Radius = n
Diameter 42175026
Circumference 132496751.84656
Area 1.397013488511E+15

Sphere

Radius = n
Volume 3.9279386800202E+22
Surface area 5.5880539540442E+15
Circumference 132496751.84656

Square

Length = n
Perimeter 84350052
Area 444683204525169
Diagonal 29822246.881319

Cube

Length = n
Surface area 2668099227151014
Volume 9.3772628563062E+21
Space diagonal 36524643.921269

Equilateral Triangle

Length = n
Perimeter 63262539
Area 1.9255347587753E+14
Altitude 18262321.960635

Triangular Pyramid

Length = n
Surface area 1.9255347587753E+14
Volume 1.1051210257771E+21
Height 9940748.9604397