21105844 (number)

21105844 is an even 8-digits composite number following 21105843 and preceding 21105845. In scientific notation, it is written as 2.1105844 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 10532864 positive integers (up to 21105844) that are relatively prime to 21105844.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1105844 × 10^7
Engineering notation 2.1105844 × 10^6

Prime Factorization of 21105844

Prime Factorization 2 × 2 × 557 × 9473

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10552922
Product of the distinct prime numbers

The prime factorization of 21105844 is 2 × 2 × 557 × 9473. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 4, 39, 12, 893, 970, 8390, 4350, 75311, 44391, 893005, 550347, 6074846, 3928126, 85204628, 80869827, 722495464, 31772200, 4491538184, 5399402023

Basic calculations (n = 21105844)

Multiplication

n×y
n×2 42211688
n×3 63317532
n×4 84423376
n×5 105529220

Division

n÷y
n÷2 10552922
n÷3 7035281.3333333
n÷3 5276461
n÷5 4221168.8

Exponentiation

ny
n2 445456650952336
n3 9.4017385837625E+21
n4 1.9843162787767E+29
n5 4.1880669826522E+36

Nth Root

y√n
2√n 4594.1097070053
3√n 276.35515785235
4√n 67.779862105239
5√n 29.166246689789

Divisors of 21105844

1, 2, 4, 557, 1114, 2228, 9473, 18946, 37892, 5276461, 10552922, 21105844

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21105843
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21105844 can be divided by 12 positive divisors. The sum of these divisors (counting 21105844) is 1, the average is 0.083333333333333.

Base conversion 21105844

Base System Value
2 Binary 1010000100000110010110100
3 Ternary 1110201021202221
4 Quaternary 1100200302310
5 Quinary 20400341334
6 Senary 2032212124
8 Octal 120406264
10 Decimal 21105844
12 Duodecimal 709a044
16 Hexadecimal 1420cb4
20 Vigesimal 6bi4c4
36 Base36 ckddg

Cryptographic Hash Functions

md5 9c8e32a7e3991ed6b439f9c7614281b1
sha1 1b9c42e0a61844f15a1156ad2dc7a7339ef1e645
sha256 4fab10d4ed595b0380a6869335949d325ae72dd996a3325ba2b542859e8a95af
sha512 e8434b984eb96b3e8d48026a8977fed883248e69db63ed3be216bf5b3ae28c7c4aa5e02cfde2fca80721e23623a080cebdad7f87f69561020304f52e3596100d
ripemd-160 215825001c580d45a815f36b7532dab012d3cccb

21105844 as geometric shapes

Circle

Radius = n
Diameter 42211688
Circumference 132611928.91642
Area 1.3994433421246E+15

Sphere

Radius = n
Volume 3.9381910487626E+22
Surface area 5.5977733684983E+15
Circumference 132611928.91642

Square

Length = n
Perimeter 84423376
Area 445456650952336
Diagonal 29848170.830131

Cube

Length = n
Surface area 2672739905714016
Volume 9.4017385837625E+21
Space diagonal 36556394.144623

Equilateral Triangle

Length = n
Perimeter 63317532
Area 1.9288838800473E+14
Altitude 18278197.072311

Triangular Pyramid

Length = n
Surface area 1.9288838800473E+14
Volume 1.1080055179203E+21
Height 9949390.2767103