21105842 (number)

21105842 is an even 8-digits composite number following 21105841 and preceding 21105843. In scientific notation, it is written as 2.1105842 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 10444032 positive integers (up to 21105842) that are relatively prime to 21105842.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105842 × 10^7
Engineering notation 2.1105842 × 10^6

Prime Factorization of 21105842

Prime Factorization 2 × 97 × 108793

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21105842
Product of the distinct prime numbers

The prime factorization of 21105842 is 2 × 97 × 108793. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21105842)

Multiplication

n×y
n×2 42211684
n×3 63317526
n×4 84423368
n×5 105529210

Division

n÷y
n÷2 10552921
n÷3 7035280.6666667
n÷3 5276460.5
n÷5 4221168.4

Exponentiation

ny
n2 445456566528964
n3 9.4017359110228E+21
n4 1.9843155266377E+29
n5 4.1880649983363E+36

Nth Root

y√n
2√n 4594.1094893352
3√n 276.35514912317
4√n 67.779860499526
5√n 29.166246137027

Divisors of 21105842

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 -21105841
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 21105842 can be divided by 8 positive divisors. The sum of these divisors (counting 21105842) is 1, the average is 0.125.

Base conversion 21105842

Base System Value
2 Binary 1010000100000110010110010
3 Ternary 1110201021202212
4 Quaternary 1100200302302
5 Quinary 20400341332
6 Senary 2032212122
8 Octal 120406262
10 Decimal 21105842
12 Duodecimal 709a042
16 Hexadecimal 1420cb2
20 Vigesimal 6bi4c2
36 Base36 ckdde

Cryptographic Hash Functions

md5 c01d782ef556af2eb16a14f4e0bcd655
sha1 5fb393ed4dde1811609dad8a29ffdfd074863973
sha256 cd89a8779d6932a72e48fe4ba6e88c329c33abe713731065ff6a6d096b21052e
sha512 ee0b56410069b07e3a7b35f8010327263a722d30be6ecd7bc28b10fde549c46d735b2c3ac833c87d97268fccddba819a5689e1f8cc4d97014e614adeb4151710
ripemd-160 14c1adc7a4a9ead31b1e7c85c606be0ff36ac4fa

21105842 as geometric shapes

Circle

Radius = n
Diameter 42211684
Circumference 132611916.35005
Area 1.3994430769007E+15

Sphere

Radius = n
Volume 3.9381899292081E+22
Surface area 5.5977723076029E+15
Circumference 132611916.35005

Square

Length = n
Perimeter 84423368
Area 445456566528964
Diagonal 29848168.001704

Cube

Length = n
Surface area 2672739399173784
Volume 9.4017359110228E+21
Space diagonal 36556390.680521

Equilateral Triangle

Length = n
Perimeter 63317526
Area 1.9288835144834E+14
Altitude 18278195.340261

Triangular Pyramid

Length = n
Surface area 1.9288835144834E+14
Volume 1.1080052029349E+21
Height 9949389.3339012