21081449 (number)

21081449 is an odd 8-digits composite number following 21081448 and preceding 21081450. In scientific notation, it is written as 2.1081449 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 21056640 positive integers (up to 21081449) that are relatively prime to 21081449.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand four hundred forty-nine

Notation

Scientific notation 2.1081449 × 10^7
Engineering notation 2.1081449 × 10^6

Prime Factorization of 21081449

Prime Factorization 881 × 23929

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21081449
Product of the distinct prime numbers

The prime factorization of 21081449 is 881 × 23929. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 3, 36, 19, 644, 880, 2343, 7425, 62326, 66145, 385330, 948721, 8593024, 5777970, 86486718, 1867509, 148386575, 975904304, 2568118239, 944241370

Basic calculations (n = 21081449)

Multiplication

n×y
n×2 42162898
n×3 63244347
n×4 84325796
n×5 105407245

Division

n÷y
n÷2 10540724.5
n÷3 7027149.6666667
n÷3 5270362.25
n÷5 4216289.8

Exponentiation

ny
n2 444427491939601
n3 9.3691755055226E+21
n4 1.9751579559172E+29
n5 4.1639191714614E+36

Nth Root

y√n
2√n 4591.4539091665
3√n 276.24864259552
4√n 67.760267924252
5√n 29.159501261617

Divisors of 21081449

1, 881, 23929, 21081449

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 -21081448
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 21081449 can be divided by 4 positive divisors. The sum of these divisors (counting 21081449) is 1, the average is 0.25.

Base conversion 21081449

Base System Value
2 Binary 1010000011010110101101001
3 Ternary 1110200001022102
4 Quaternary 1100122311221
5 Quinary 20344101244
6 Senary 2031503145
8 Octal 120326551
10 Decimal 21081449
12 Duodecimal 7087ab5
16 Hexadecimal 141ad69
20 Vigesimal 6bf3c9
36 Base36 cjujt

Cryptographic Hash Functions

md5 873213dbc5e604c15515e0989fd58cef
sha1 36b8aa7a5a04bb40a86c82b83e120253a4ec52a3
sha256 48dfffd6a41f06aa30b5e999b3ee321b51f210d01ef461db429bf96ca8069950
sha512 c9874e704d3c1e0147af4055cd7fc78a6868fdaf2a6ac75f949cef4dd027051811bc9950a90fe772eb74e2bb65dbb3b6e53b1b634de2a31f833e70e34a7d5810
ripemd-160 1862b88b9de4bc78754c1042e3072619838b27e4

21081449 as geometric shapes

Circle

Radius = n
Diameter 42162898
Circumference 132458650.61086
Area 1.3962101437308E+15

Sphere

Radius = n
Volume 3.9245510584458E+22
Surface area 5.5848405749232E+15
Circumference 132458650.61086

Square

Length = n
Perimeter 84325796
Area 444427491939601
Diagonal 29813671.090277

Cube

Length = n
Surface area 2666564951637606
Volume 9.3691755055226E+21
Space diagonal 36514140.765172

Equilateral Triangle

Length = n
Perimeter 63244347
Area 1.9244274907995E+14
Altitude 18257070.382586

Triangular Pyramid

Length = n
Surface area 1.9244274907995E+14
Volume 1.104167922347E+21
Height 9937890.3634256