21131385 (number)

21131385 is an odd 8-digits composite number following 21131384 and preceding 21131386. In scientific notation, it is written as 2.1131385 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 10115520 positive integers (up to 21131385) that are relatively prime to 21131385.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-one thousand three hundred eighty-five

Notation

Scientific notation 2.1131385 × 10^7
Engineering notation 2.1131385 × 10^6

Prime Factorization of 21131385

Prime Factorization 15 × 11 × 83 × 1543

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21131385
Product of the distinct prime numbers

The prime factorization of 21131385 is 15 × 11 × 83 × 1543. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 45, 89, 486, 162, 9146, 8815, 36357, 65265, 737973, 460302, 4836358, 3845535, 30868540, 2438700, 668133382, 494762159, 4590019247, 2370888552

Basic calculations (n = 21131385)

Multiplication

n×y
n×2 42262770
n×3 63394155
n×4 84525540
n×5 105656925

Division

n÷y
n÷2 10565692.5
n÷3 7043795
n÷3 5282846.25
n÷5 4226277

Exponentiation

ny
n2 446535432018225
n3 9.4359121301184E+21
n4 1.993938920477E+29
n5 4.2134690995084E+36

Nth Root

y√n
2√n 4596.8886216657
3√n 276.46658894525
4√n 67.800358565908
5√n 29.173302316452

Divisors of 21131385

1, 11, 15, 83, 165, 913, 1245, 1543, 13695, 16973, 23145, 128069, 254595, 1408759, 1921035, 21131385

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 -21131384
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 21131385 can be divided by 16 positive divisors. The sum of these divisors (counting 21131385) is 1, the average is 0.0625.

Base conversion 21131385

Base System Value
2 Binary 1010000100111000001111001
3 Ternary 1110202120210220
4 Quaternary 1100213001321
5 Quinary 20402201020
6 Senary 2032530253
8 Octal 120470171
10 Decimal 21131385
12 Duodecimal 70b0989
16 Hexadecimal 1427079
20 Vigesimal 6c1895
36 Base36 ckx2x

Cryptographic Hash Functions

md5 1a25b0ce71b16107e751cd9bbdedb490
sha1 67d5a2185a30d9d88ae0a6956a6a94aa9b2c6f3a
sha256 478c4449144325b14cf4119df289fe46ed6d65d4c940f6ce1991e883ae5a6488
sha512 65d99d5c83ec7befa1e87d1a5b8709cf7e97e2e7dacac1411ec7046eb8c5e7ae04f3fa614720577b143e772b28e87c32479e7656c41f0feee2a6f4417e0c1c7b
ripemd-160 c5f3249beb7f5504cc1a5b7a164f13139ab7edb7

21131385 as geometric shapes

Circle

Radius = n
Diameter 42262770
Circumference 132772407.75236
Area 1.402832432796E+15

Sphere

Radius = n
Volume 3.9525056303865E+22
Surface area 5.611329731184E+15
Circumference 132772407.75236

Square

Length = n
Perimeter 84525540
Area 446535432018225
Diagonal 29884291.258727

Cube

Length = n
Surface area 2679212592109350
Volume 9.4359121301184E+21
Space diagonal 36600632.454299

Equilateral Triangle

Length = n
Perimeter 63394155
Area 1.9335551390882E+14
Altitude 18300316.227149

Triangular Pyramid

Length = n
Surface area 1.9335551390882E+14
Volume 1.1120329089812E+21
Height 9961430.4195758