21491329 (number)

21491329 is an odd 8-digits composite number following 21491328 and preceding 21491330. In scientific notation, it is written as 2.1491329 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 21468484 positive integers (up to 21491329) that are relatively prime to 21491329.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand three hundred twenty-nine

Notation

Scientific notation 2.1491329 × 10^7
Engineering notation 2.1491329 × 10^6

Prime Factorization of 21491329

Prime Factorization 983 × 21863

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21491329
Product of the distinct prime numbers

The prime factorization of 21491329 is 983 × 21863. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21491329)

Multiplication

n×y
n×2 42982658
n×3 64473987
n×4 85965316
n×5 107456645

Division

n÷y
n÷2 10745664.5
n÷3 7163776.3333333
n÷3 5372832.25
n÷5 4298265.8

Exponentiation

ny
n2 461877222186241
n3 9.9263553396106E+21
n4 2.1333056837448E+29
n5 4.5847574306929E+36

Nth Root

y√n
2√n 4635.8741354787
3√n 278.02750189422
4√n 68.087253840045
5√n 29.272017392488

Divisors of 21491329

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491328
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491329 can be divided by 4 positive divisors. The sum of these divisors (counting 21491329) is 1, the average is 0.25.

Base conversion 21491329

Base System Value
2 Binary 1010001111110111010000001
3 Ternary 1111102212120011
4 Quaternary 1101332322001
5 Quinary 21000210304
6 Senary 2044344521
8 Octal 121767201
10 Decimal 21491329
12 Duodecimal 7245141
16 Hexadecimal 147ee81
20 Vigesimal 6e6869
36 Base36 csmtd

Cryptographic Hash Functions

md5 cea2a50b3b4d4a0b101431fdf6e91356
sha1 19f5bfa936f505bf49e1c70df21d34e146c10b74
sha256 2a823775f03593545a73ea213c61229f5b968518f0a94b32a5b27b6c4a14339d
sha512 8ac92973442c4c52d99a15285783698be6cc8df146a2c62ea86258cd884f9b9ab807718df1058fc9c37f32a7807f58f60671f311424fe3e7f5610322204aef22
ripemd-160 4ee888e998a472c10b2df33e46c0739dc50e72df

21491329 as geometric shapes

Circle

Radius = n
Diameter 42982658
Circumference 135034002.60456
Area 1.4510300880808E+15

Sphere

Radius = n
Volume 4.157942001579E+22
Surface area 5.804120352323E+15
Circumference 135034002.60456

Square

Length = n
Perimeter 85965316
Area 461877222186241
Diagonal 30393328.945222

Cube

Length = n
Surface area 2771263333117446
Volume 9.9263553396106E+21
Space diagonal 37224073.750178

Equilateral Triangle

Length = n
Perimeter 64473987
Area 1.9999870392134E+14
Altitude 18612036.875089

Triangular Pyramid

Length = n
Surface area 1.9999870392134E+14
Volume 1.1698321955177E+21
Height 10131109.648407