21081639 (number)

21081639 is an odd 8-digits composite number following 21081638 and preceding 21081640. In scientific notation, it is written as 2.1081639 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 13382688 positive integers (up to 21081639) that are relatively prime to 21081639.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand six hundred thirty-nine

Notation

Scientific notation 2.1081639 × 10^7
Engineering notation 2.1081639 × 10^6

Prime Factorization of 21081639

Prime Factorization 23 × 3 × 1103 × 277

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21081639
Product of the distinct prime numbers

The prime factorization of 21081639 is 23 × 3 × 1103 × 277. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 79, 58, 733, 930, 39, 7479, 41360, 82896, 818359, 163846, 9782186, 4955333, 90373157, 99402947, 627675340, 708353376, 2742170928, 6002771886

Basic calculations (n = 21081639)

Multiplication

n×y
n×2 42163278
n×3 63244917
n×4 84326556
n×5 105408195

Division

n÷y
n÷2 10540819.5
n÷3 7027213
n÷3 5270409.75
n÷5 4216327.8

Exponentiation

ny
n2 444435502926321
n3 9.3694288314761E+21
n4 1.9752291626137E+29
n5 4.1641068148495E+36

Nth Root

y√n
2√n 4591.4745997337
3√n 276.24947250502
4√n 67.760420598855
5√n 29.15955382238

Divisors of 21081639

1, 3, 23, 69, 277, 831, 1103, 3309, 6371, 19113, 25369, 76107, 305531, 916593, 7027213, 21081639

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 -21081638
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 21081639 can be divided by 16 positive divisors. The sum of these divisors (counting 21081639) is 1, the average is 0.0625.

Base conversion 21081639

Base System Value
2 Binary 1010000011010111000100111
3 Ternary 1110200001120110
4 Quaternary 1100122320213
5 Quinary 20344103024
6 Senary 2031504103
8 Octal 120327047
10 Decimal 21081639
12 Duodecimal 7088033
16 Hexadecimal 141ae27
20 Vigesimal 6bf41j
36 Base36 cjup3

Cryptographic Hash Functions

md5 e64738b5d6297cb202e70a6631f790e5
sha1 7ffe15a18b271eaa67e35c059e9f44951b6f622c
sha256 aaf17160cb9fa667aa73a41d64f33ebe079e1ebfaa1fa247a25b196e803ed486
sha512 8012fdce4b5f67405cac2e6c72e24a92160bd423019d177a0ccb6a9ee2cf261a7b1aed2774fcc107b39640da2d274db603091cad4ed1495d10e385c1075bdef3
ripemd-160 9477b72d72003038c82dce27ecccb3b7bd1a72ca

21081639 as geometric shapes

Circle

Radius = n
Diameter 42163278
Circumference 132459844.41606
Area 1.3962353109878E+15

Sphere

Radius = n
Volume 3.924657171373E+22
Surface area 5.5849412439513E+15
Circumference 132459844.41606

Square

Length = n
Perimeter 84326556
Area 444435502926321
Diagonal 29813939.790854

Cube

Length = n
Surface area 2666613017557926
Volume 9.3694288314761E+21
Space diagonal 36514469.854826

Equilateral Triangle

Length = n
Perimeter 63244917
Area 1.9244621793895E+14
Altitude 18257234.927413

Triangular Pyramid

Length = n
Surface area 1.9244621793895E+14
Volume 1.1041977770969E+21
Height 9937979.9302845