21061809 (number)

21061809 is an odd 8-digits composite number following 21061808 and preceding 21061810. In scientific notation, it is written as 2.1061809 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 13970880 positive integers (up to 21061809) that are relatively prime to 21061809.

Interesting facts

Basic properties

Name

Name twenty-one million sixty-one thousand eight hundred nine

Notation

Scientific notation 2.1061809 × 10^7
Engineering notation 2.1061809 × 10^6

Prime Factorization of 21061809

Prime Factorization 9 × 3 × 211 × 3697

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21061809
Product of the distinct prime numbers

The prime factorization of 21061809 is 9 × 3 × 211 × 3697. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 100, 17, 626, 884, 6612, 396, 31771, 17732, 126798, 711777, 5877488, 7695479, 84764672, 71556722, 835075942, 90011324, 1147931962, 6073933599

Basic calculations (n = 21061809)

Multiplication

n×y
n×2 42123618
n×3 63185427
n×4 84247236
n×5 105309045

Division

n÷y
n÷2 10530904.5
n÷3 7020603
n÷3 5265452.25
n÷5 4212361.8

Exponentiation

ny
n2 443599798352481
n3 9.3430142253385E+21
n4 1.9678078109836E+29
n5 4.1445592263645E+36

Nth Root

y√n
2√n 4589.314654717
3√n 276.16282924901
4√n 67.744480621797
5√n 29.154066093114

Divisors of 21061809

1, 3, 9, 27, 211, 633, 1899, 3697, 5697, 11091, 33273, 99819, 780067, 2340201, 7020603, 21061809

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 -21061808
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 21061809 can be divided by 16 positive divisors. The sum of these divisors (counting 21061809) is 1, the average is 0.0625.

Base conversion 21061809

Base System Value
2 Binary 1010000010110000010110001
3 Ternary 1110122001101000
4 Quaternary 1100112002301
5 Quinary 20342434214
6 Senary 2031232213
8 Octal 120260261
10 Decimal 21061809
12 Duodecimal 7078669
16 Hexadecimal 14160b1
20 Vigesimal 6bcea9
36 Base36 cjfe9

Cryptographic Hash Functions

md5 7eb4f8eaa7c43110e34d5c785a69246f
sha1 f339c1c91d741b6b522752b5c88034f07aedccad
sha256 e22e377b38a8253ae2559ee43b17ee203dc3c9a3b8c1ec481a13d7c70c715816
sha512 51607f1dc01369bb2577cac5d3d898cf1f72ebf92b1d93021246ac1749aeac7f23ce2ca91feb25303110c78386cbaeaccb952e34c331abbe596698c317ca7254
ripemd-160 6d43f67c3b424a02f0963b98e35569f8c3ac73c3

21061809 as geometric shapes

Circle

Radius = n
Diameter 42123618
Circumference 132335248.85142
Area 1.3936098676381E+15

Sphere

Radius = n
Volume 3.9135926470278E+22
Surface area 5.5744394705523E+15
Circumference 132335248.85142

Square

Length = n
Perimeter 84247236
Area 443599798352481
Diagonal 29785895.935912

Cube

Length = n
Surface area 2661598790114886
Volume 9.3430142253385E+21
Space diagonal 36480123.287311

Equilateral Triangle

Length = n
Perimeter 63185427
Area 1.9208434724345E+14
Altitude 18240061.643656

Triangular Pyramid

Length = n
Surface area 1.9208434724345E+14
Volume 1.1010847859099E+21
Height 9928631.9786372