21131872 (number)

21131872 is an even 8-digits composite number following 21131871 and preceding 21131873. In scientific notation, it is written as 2.1131872 × 10^7. The sum of its digits is 25. It has a total of 8 prime factors and 36 positive divisors. There are 10337600 positive integers (up to 21131872) that are relatively prime to 21131872.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand eight hundred seventy-two

Notation

Scientific notation 2.1131872 × 10^7
Engineering notation 2.1131872 × 10^6

Prime Factorization of 21131872

Prime Factorization 2 × 2 × 2 × 2 × 2 × 71 × 131 × 71

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 18602
Product of the distinct prime numbers

The prime factorization of 21131872 is 2 × 2 × 2 × 2 × 2 × 71 × 131 × 71. Since it has a total of 8 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21131872)

Multiplication

n×y
n×2 42263744
n×3 63395616
n×4 84527488
n×5 105659360

Division

n÷y
n÷2 10565936
n÷3 7043957.3333333
n÷3 5282968
n÷5 4226374.4

Exponentiation

ny
n2 446556014224384
n3 9.4365645334199E+21
n4 1.9941227383997E+29
n5 4.2139546460152E+36

Nth Root

y√n
2√n 4596.9415919718
3√n 276.46871277188
4√n 67.800749199192
5√n 29.173436782482

Divisors of 21131872

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21131871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21131872 can be divided by 36 positive divisors. The sum of these divisors (counting 21131872) is 1, the average is 0.027777777777778.

Base conversion 21131872

Base System Value
2 Binary 1010000100111001001100000
3 Ternary 1110202121110221
4 Quaternary 1100213021200
5 Quinary 20402204442
6 Senary 2032532424
8 Octal 120471140
10 Decimal 21131872
12 Duodecimal 70b1114
16 Hexadecimal 1427260
20 Vigesimal 6c19dc
36 Base36 ckxgg

Cryptographic Hash Functions

md5 a2706eb9c9028b979526f678dc2f3736
sha1 ddfbf9796f36b7230b952b76d747f425186d75e1
sha256 e0261dd84b5aad4110620705310fbf0d5ebe1bdd0b4f9695a290c6a12c02bd30
sha512 6ce6a9a5b0823d91fead9029fe4850215a55c7e3fb8b218711ed86039b162ccfb8c26959769f3727bbfce62077563dda5d750347e94803559f74a8c6308bef23
ripemd-160 d135b57bfa5c5821ada3e2ce58df4749962b1309

21131872 as geometric shapes

Circle

Radius = n
Diameter 42263744
Circumference 132775467.6636
Area 1.4028970937037E+15

Sphere

Radius = n
Volume 3.9527789084424E+22
Surface area 5.6115883748147E+15
Circumference 132775467.6636

Square

Length = n
Perimeter 84527488
Area 446556014224384
Diagonal 29884979.980732

Cube

Length = n
Surface area 2679336085346304
Volume 9.4365645334199E+21
Space diagonal 36601475.963042

Equilateral Triangle

Length = n
Perimeter 63395616
Area 1.9336442626552E+14
Altitude 18300737.981521

Triangular Pyramid

Length = n
Surface area 1.9336442626552E+14
Volume 1.1121097954476E+21
Height 9961659.9935774