21105843 (number)

21105843 is an odd 8-digits composite number following 21105842 and preceding 21105844. In scientific notation, it is written as 2.1105843 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 12791400 positive integers (up to 21105843) that are relatively prime to 21105843.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105843 × 10^7
Engineering notation 2.1105843 × 10^6

Prime Factorization of 21105843

Prime Factorization 3 × 11 × 639571

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21105843
Product of the distinct prime numbers

The prime factorization of 21105843 is 3 × 11 × 639571. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21105843)

Multiplication

n×y
n×2 42211686
n×3 63317529
n×4 84423372
n×5 105529215

Division

n÷y
n÷2 10552921.5
n÷3 7035281
n÷3 5276460.75
n÷5 4221168.6

Exponentiation

ny
n2 445456608740649
n3 9.4017372473926E+21
n4 1.9843159027072E+29
n5 4.1880659904941E+36

Nth Root

y√n
2√n 4594.1095981702
3√n 276.35515348776
4√n 67.779861302383
5√n 29.166246413408

Divisors of 21105843

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21105842
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21105843 can be divided by 8 positive divisors. The sum of these divisors (counting 21105843) is 1, the average is 0.125.

Base conversion 21105843

Base System Value
2 Binary 1010000100000110010110011
3 Ternary 1110201021202220
4 Quaternary 1100200302303
5 Quinary 20400341333
6 Senary 2032212123
8 Octal 120406263
10 Decimal 21105843
12 Duodecimal 709a043
16 Hexadecimal 1420cb3
20 Vigesimal 6bi4c3
36 Base36 ckddf

Cryptographic Hash Functions

md5 2dcfe6b2b1b4511458bbc91714700147
sha1 da74953752264466ffcafdf71cb045c362767fb9
sha256 6550ede683052383fc979eb6ef37d16c437e47aebc5100cc79504bfbe78f1a18
sha512 92ba01ff44afdccf3fbac7e21310009f3a2972652abede01ad217728dbda2b3bab068f46ffea324573b544620370686230415554a27a50492176daef3a10645e
ripemd-160 04f6a64d5205dd7ef31391c4570839f0a72dad04

21105843 as geometric shapes

Circle

Radius = n
Diameter 42211686
Circumference 132611922.63324
Area 1.3994432095126E+15

Sphere

Radius = n
Volume 3.9381904889853E+22
Surface area 5.5977728380506E+15
Circumference 132611922.63324

Square

Length = n
Perimeter 84423372
Area 445456608740649
Diagonal 29848169.415917

Cube

Length = n
Surface area 2672739652443894
Volume 9.4017372473926E+21
Space diagonal 36556392.412572

Equilateral Triangle

Length = n
Perimeter 63317529
Area 1.9288836972653E+14
Altitude 18278196.206286

Triangular Pyramid

Length = n
Surface area 1.9288836972653E+14
Volume 1.1080053604276E+21
Height 9949389.8053058