21289 (number)

21289 is an odd 5-digits composite number following 21288 and preceding 21290. In scientific notation, it is written as 2.1289 × 10^4. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 20880 positive integers (up to 21289) that are relatively prime to 21289.

Interesting facts

Basic properties

Name

Name twenty-one thousand two hundred eighty-nine

Notation

Scientific notation 2.1289 × 10^4
Engineering notation 2.1289 × 10^3

Prime Factorization of 21289

Prime Factorization 349 × 61

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21289
Product of the distinct prime numbers

The prime factorization of 21289 is 349 × 61. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 5, 80, 64, 81, 276, 7928, 9715, 17607, 67981, 143492, 240970, 6786883, 8599594, 26899197, 33004589, 70123933, 853715043, 2639855822, 1959084287

Basic calculations (n = 21289)

Multiplication

n×y
n×2 42578
n×3 63867
n×4 85156
n×5 106445

Division

n÷y
n÷2 10644.5
n÷3 7096.3333333333
n÷3 5322.25
n÷5 4257.8

Exponentiation

ny
n2 453221521
n3 9648632960569
n4 205409747097553441
n5 4.3729681059598E+21

Nth Root

y√n
2√n 145.90750494748
3√n 27.715225765096
4√n 12.079217894694
5√n 7.3389013917465

Divisors of 21289

1, 61, 349, 21289

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 -21288
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 21289 can be divided by 4 positive divisors. The sum of these divisors (counting 21289) is 1, the average is 0.25.

Base conversion 21289

Base System Value
2 Binary 101001100101001
3 Ternary 1002012111
4 Quaternary 11030221
5 Quinary 1140124
6 Senary 242321
8 Octal 51451
10 Decimal 21289
12 Duodecimal 103a1
16 Hexadecimal 5329
20 Vigesimal 2d49
36 Base36 gfd

Cryptographic Hash Functions

md5 481f0dd7ae83e18513be0b4e400a9535
sha1 e3ba63df7985c6e9ab0d157ee0271183f89c02a7
sha256 7cffec5b27791b853b92855050a1541f20683c961e5ad448a5298f10168d6cf5
sha512 fcffca28e3f023e65714c44e980b7a3b4dea66b3e20a121329b018835ab182bf8315f9ae24e7467f1d1f84f930457f9a062947869f56a6986fa4827c9b678f2f
ripemd-160 f4e795b041f6276bbcea4417d22edac65bfd4709

21289 as geometric shapes

Circle

Radius = n
Diameter 42578
Circumference 133762.73200455
Area 1423837400.8224

Sphere

Radius = n
Volume 40416099234811
Surface area 5695349603.2896
Circumference 133762.73200455

Square

Length = n
Perimeter 85156
Area 453221521
Diagonal 30107.192529361

Cube

Length = n
Surface area 2719329126
Volume 9648632960569
Space diagonal 36873.629642334

Equilateral Triangle

Length = n
Perimeter 63867
Area 196250675.36391
Altitude 18436.814821167

Triangular Pyramid

Length = n
Surface area 196250675.36391
Volume 1137102299266.4
Height 10035.73084312