21006909 (number)

21006909 is an odd 8-digits composite number following 21006908 and preceding 21006910. In scientific notation, it is written as 2.1006909 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 10912320 positive integers (up to 21006909) that are relatively prime to 21006909.

Interesting facts

Basic properties

Name

Name twenty-one million six thousand nine hundred nine

Notation

Scientific notation 2.1006909 × 10^7
Engineering notation 2.1006909 × 10^6

Prime Factorization of 21006909

Prime Factorization 11 × 7 × 3 × 3 × 30313

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7002303
Product of the distinct prime numbers

The prime factorization of 21006909 is 11 × 7 × 3 × 3 × 30313. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 3, 64, 64, 937, 585, 1527, 4705, 49130, 11789, 256421, 49837, 8088133, 5419125, 49714860, 99702150, 163142788, 917315292, 9394319963, 2072255168

Basic calculations (n = 21006909)

Multiplication

n×y
n×2 42013818
n×3 63020727
n×4 84027636
n×5 105034545

Division

n÷y
n÷2 10503454.5
n÷3 7002303
n÷3 5251727.25
n÷5 4201381.8

Exponentiation

ny
n2 441290225734281
n3 9.2701436145895E+21
n4 1.9473706332861E+29
n5 4.0908237682714E+36

Nth Root

y√n
2√n 4583.329466665
3√n 275.92267052242
4√n 67.700291481389
5√n 29.138851543803

Divisors of 21006909

1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30313, 90939, 212191, 272817, 333443, 636573, 1000329, 1909719, 2334101, 3000987, 7002303, 21006909

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 -21006908
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 21006909 can be divided by 24 positive divisors. The sum of these divisors (counting 21006909) is 1, the average is 0.041666666666667.

Base conversion 21006909

Base System Value
2 Binary 1010000001000101000111101
3 Ternary 1110112021001200
4 Quaternary 1100020220331
5 Quinary 20334210114
6 Senary 2030130113
8 Octal 120105075
10 Decimal 21006909
12 Duodecimal 7050939
16 Hexadecimal 1408a3d
20 Vigesimal 6b5h59
36 Base36 ci919

Cryptographic Hash Functions

md5 19bbdf22d150383a88fff6241d23aaa9
sha1 1fd537a2b90e35156a7b3a59f0e68af187c16b9f
sha256 ca626b2b9d8a4a77b058bc66ad2a593b5a1d612a283e4967358d68776ba48b05
sha512 49209c48956b2e5a5628ee227da9ab2f58ee4d15675e16df0adb4d52ef34a9c476c701c2d06ef853dcaa5b5a73dcd39d287ee999782a2467d37d304b8b891ad0
ripemd-160 49800db3ec07830fe3749d439462ba5c9bb6030d

21006909 as geometric shapes

Circle

Radius = n
Diameter 42013818
Circumference 131990301.97806
Area 1.3863541312678E+15

Sphere

Radius = n
Volume 3.8830686769756E+22
Surface area 5.5454165250712E+15
Circumference 131990301.97806

Square

Length = n
Perimeter 84027636
Area 441290225734281
Diagonal 29708255.611337

Cube

Length = n
Surface area 2647741354405686
Volume 9.2701436145895E+21
Space diagonal 36385033.697976

Equilateral Triangle

Length = n
Perimeter 63020727
Area 1.9108427296383E+14
Altitude 18192516.848988

Triangular Pyramid

Length = n
Surface area 1.9108427296383E+14
Volume 1.0924969020749E+21
Height 9902751.8704458