21931479 (number)

21931479 is an odd 8-digits composite number following 21931478 and preceding 21931480. In scientific notation, it is written as 2.1931479 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 13758336 positive integers (up to 21931479) that are relatively prime to 21931479.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred thirty-one thousand four hundred seventy-nine

Notation

Scientific notation 2.1931479 × 10^7
Engineering notation 2.1931479 × 10^6

Prime Factorization of 21931479

Prime Factorization 9 × 9 × 3 × 17 × 5309

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2436831
Product of the distinct prime numbers

The prime factorization of 21931479 is 9 × 9 × 3 × 17 × 5309. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 1, 47, 92, 164, 978, 6467, 4940, 42684, 24781, 861413, 955626, 3165862, 5061766, 84426463, 70737528, 756794163, 28047540, 1040404724, 6556493064

Basic calculations (n = 21931479)

Multiplication

n×y
n×2 43862958
n×3 65794437
n×4 87725916
n×5 109657395

Division

n÷y
n÷2 10965739.5
n÷3 7310493
n÷3 5482869.75
n÷5 4386295.8

Exponentiation

ny
n2 480989771127441
n3 1.0548817064696E+22
n4 2.3135115992923E+29
n5 5.0738731056135E+36

Nth Root

y√n
2√n 4683.1057002805
3√n 279.91272364902
4√n 68.433220735842
5√n 29.390947300969

Divisors of 21931479

1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 5309, 15927, 47781, 90253, 143343, 270759, 430029, 812277, 1290087, 2436831, 7310493, 21931479

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21931478
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21931479 can be divided by 24 positive divisors. The sum of these divisors (counting 21931479) is 1, the average is 0.041666666666667.

Base conversion 21931479

Base System Value
2 Binary 1010011101010010111010111
3 Ternary 1112021020100000
4 Quaternary 1103222113113
5 Quinary 21103301404
6 Senary 2102022343
8 Octal 123522727
10 Decimal 21931479
12 Duodecimal 74179b3
16 Hexadecimal 14ea5d7
20 Vigesimal 6h18dj
36 Base36 d22fr

Cryptographic Hash Functions

md5 fade793e4f6e1768c5a0bf0f4853cc02
sha1 bec8a34544851c043e3c2c964f67e31efc8bde0a
sha256 30065d3d3dd517ebbf444e13feb8238708b46d635c2c716d93210b9ce30f262b
sha512 748c8c81e1904ab0ca898d94c76bae7ad6f9a5d3bf5fb5f6f436875d6adb6295e821953d45f812f3cd0c5ccc4be570ca996676b790d9cd918ca9fdea6248d188
ripemd-160 2b895e056da8f822065abb724b358df18b1bf45d

21931479 as geometric shapes

Circle

Radius = n
Diameter 43862958
Circumference 137799546.61752
Area 1.5110739314258E+15

Sphere

Radius = n
Volume 4.4186781592683E+22
Surface area 6.0442957257032E+15
Circumference 137799546.61752

Square

Length = n
Perimeter 87725916
Area 480989771127441
Diagonal 31015795.044701

Cube

Length = n
Surface area 2885938626764646
Volume 1.0548817064696E+22
Space diagonal 37986435.91313

Equilateral Triangle

Length = n
Perimeter 65794437
Area 2.0827468037841E+14
Altitude 18993217.956565

Triangular Pyramid

Length = n
Surface area 2.0827468037841E+14
Volume 1.2431900133239E+21
Height 10338598.348234