21132731 (number)

21132731 is an odd 8-digits composite number following 21132730 and preceding 21132732. In scientific notation, it is written as 2.1132731 × 10^7. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 19374120 positive integers (up to 21132731) that are relatively prime to 21132731.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred thirty-two thousand seven hundred thirty-one

Notation

Scientific notation 2.1132731 × 10^7
Engineering notation 2.1132731 × 10^6

Prime Factorization of 21132731

Prime Factorization 31 × 19 × 35879

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21132731
Product of the distinct prime numbers

The prime factorization of 21132731 is 31 × 19 × 35879. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21132731)

Multiplication

n×y
n×2 42265462
n×3 63398193
n×4 84530924
n×5 105663655

Division

n÷y
n÷2 10566365.5
n÷3 7044243.6666667
n÷3 5283182.75
n÷5 4226546.2

Exponentiation

ny
n2 446592319518361
n3 9.4377153550476E+21
n4 1.9944469985279E+29
n5 4.2148111913647E+36

Nth Root

y√n
2√n 4597.0350227076
3√n 276.47245882596
4√n 67.801438205303
5√n 29.173673955741

Divisors of 21132731

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 -21132730
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 21132731 can be divided by 8 positive divisors. The sum of these divisors (counting 21132731) is 1, the average is 0.125.

Base conversion 21132731

Base System Value
2 Binary 1010000100111010110111011
3 Ternary 1110202122122202
4 Quaternary 1100213112323
5 Quinary 20402221411
6 Senary 2032540415
8 Octal 120472673
10 Decimal 21132731
12 Duodecimal 70b170b
16 Hexadecimal 14275bb
20 Vigesimal 6c1bgb
36 Base36 cky4b

Cryptographic Hash Functions

md5 242307f481dd8cefa7073762cb6fa3bc
sha1 e50dbe72423b92a95013c9a37295cec7995e298e
sha256 cb29cc5e09fa8876627b36c97afecbc03f9cacfdcfd9e234b4be616003ea2261
sha512 e36e2b304785a577c32a56965c69ba88f7b475fbb176a854eae4dd69ae9fce038b56972d94be67811ffe4d03f4ba50466a52bbfc7ba4334324df0ff46a0c94f0
ripemd-160 4adbc30cf804acb78c95f6b2bea8b44bc00fd843

21132731 as geometric shapes

Circle

Radius = n
Diameter 42265462
Circumference 132780864.91978
Area 1.4030111501485E+15

Sphere

Radius = n
Volume 3.9532609634785E+22
Surface area 5.612044600594E+15
Circumference 132780864.91978

Square

Length = n
Perimeter 84530924
Area 446592319518361
Diagonal 29886194.790182

Cube

Length = n
Surface area 2679553917110166
Volume 9.4377153550476E+21
Space diagonal 36602963.794686

Equilateral Triangle

Length = n
Perimeter 63398193
Area 1.9338014691896E+14
Altitude 18301481.897343

Triangular Pyramid

Length = n
Surface area 1.9338014691896E+14
Volume 1.1122454210771E+21
Height 9962064.9300608