21043905 (number)

21043905 is an odd 8-digits composite number following 21043904 and preceding 21043906. In scientific notation, it is written as 2.1043905 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 11141568 positive integers (up to 21043905) that are relatively prime to 21043905.

Interesting facts

Basic properties

Name

Name twenty-one million forty-three thousand nine hundred five

Notation

Scientific notation 2.1043905 × 10^7
Engineering notation 2.1043905 × 10^6

Prime Factorization of 21043905

Prime Factorization 5 × 3 × 139 × 10093

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21043905
Product of the distinct prime numbers

The prime factorization of 21043905 is 5 × 3 × 139 × 10093. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 82, 78, 115, 850, 4076, 1708, 61392, 83181, 753311, 580953, 9818442, 4293549, 52678649, 82636541, 743593390, 990767343, 7949291811, 8023151224

Basic calculations (n = 21043905)

Multiplication

n×y
n×2 42087810
n×3 63131715
n×4 84175620
n×5 105219525

Division

n÷y
n÷2 10521952.5
n÷3 7014635
n÷3 5260976.25
n÷5 4208781

Exponentiation

ny
n2 442845937649025
n3 9.319207841522E+21
n4 1.9611252449224E+29
n5 4.126973334725E+36

Nth Root

y√n
2√n 4587.3636219511
3√n 276.08455453876
4√n 67.73007915211
5√n 29.149107810796

Divisors of 21043905

1, 3, 5, 15, 139, 417, 695, 2085, 10093, 30279, 50465, 151395, 1402927, 4208781, 7014635, 21043905

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 -21043904
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 21043905 can be divided by 16 positive divisors. The sum of these divisors (counting 21043905) is 1, the average is 0.0625.

Base conversion 21043905

Base System Value
2 Binary 1010000010001101011000001
3 Ternary 1110121010210220
4 Quaternary 1100101223001
5 Quinary 20341401110
6 Senary 2031013253
8 Octal 120215301
10 Decimal 21043905
12 Duodecimal 706a229
16 Hexadecimal 1411ac1
20 Vigesimal 6ba9f5
36 Base36 cj1kx

Cryptographic Hash Functions

md5 68779a6e2384d59e343262fc18b82e85
sha1 892f450c26c1bfc6767ddf57cb21900d0ae592ca
sha256 ac1f8ba02bfb87623a1305d700e2d0b05cb9e12dda7da8f178a9394d4eef9864
sha512 6de1cfe3e8a84efd723e09fdfb409088465bb20d51f64074917510b9477d77731a894c337ce44e744c8fbf01597f883ea686d8657997a6839f71e73d9ec5094c
ripemd-160 9e831e042d87e16073bec40115105af3da0d9d40

21043905 as geometric shapes

Circle

Radius = n
Diameter 42087810
Circumference 132222754.70168
Area 1.3912415443903E+15

Sphere

Radius = n
Volume 3.9036206522936E+22
Surface area 5.564966177561E+15
Circumference 132222754.70168

Square

Length = n
Perimeter 84175620
Area 442845937649025
Diagonal 29760575.856291

Cube

Length = n
Surface area 2657075625894150
Volume 9.319207841522E+21
Space diagonal 36449112.649653

Equilateral Triangle

Length = n
Perimeter 63131715
Area 1.917579159834E+14
Altitude 18224556.324826

Triangular Pyramid

Length = n
Surface area 1.917579159834E+14
Volume 1.0982791766712E+21
Height 9920191.952097