21081644 (number)

21081644 is an even 8-digits composite number following 21081643 and preceding 21081645. In scientific notation, it is written as 2.1081644 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors. There are 10362048 positive integers (up to 21081644) that are relatively prime to 21081644.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand six hundred forty-four

Notation

Scientific notation 2.1081644 × 10^7
Engineering notation 2.1081644 × 10^6

Prime Factorization of 21081644

Prime Factorization 2 × 2 × 59 × 89329

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10540822
Product of the distinct prime numbers

The prime factorization of 21081644 is 2 × 2 × 59 × 89329. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 6, 85, 3, 575, 593, 3643, 304, 70156, 64020, 893197, 541312, 8046179, 7710330, 11161145, 166668, 618886280, 961204448, 4819735877, 1247498680

Basic calculations (n = 21081644)

Multiplication

n×y
n×2 42163288
n×3 63244932
n×4 84326576
n×5 105408220

Division

n÷y
n÷2 10540822
n÷3 7027214.6666667
n÷3 5270411
n÷5 4216328.8

Exponentiation

ny
n2 444435713742736
n3 9.3694354980103E+21
n4 1.9752310365002E+29
n5 4.1641117529247E+36

Nth Root

y√n
2√n 4591.4751442211
3√n 276.24949434467
4√n 67.760424616594
5√n 29.159555205553

Divisors of 21081644

1, 2, 4, 59, 118, 236, 89329, 178658, 357316, 5270411, 10540822, 21081644

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21081643
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081644 can be divided by 12 positive divisors. The sum of these divisors (counting 21081644) is 1, the average is 0.083333333333333.

Base conversion 21081644

Base System Value
2 Binary 1010000011010111000101100
3 Ternary 1110200001120122
4 Quaternary 1100122320230
5 Quinary 20344103034
6 Senary 2031504112
8 Octal 120327054
10 Decimal 21081644
12 Duodecimal 7088038
16 Hexadecimal 141ae2c
20 Vigesimal 6bf424
36 Base36 cjup8

Cryptographic Hash Functions

md5 c1d95211123fad92062ab1dd2989e773
sha1 75535e2b0652c811a2b1ac49360d26a23645f844
sha256 90834f2dec7d1ba146e0f9bb07e6af0ef5db52f8e4a538f88edb6889462ce798
sha512 98183d8d7e9303e8d5371c9e881e61598191248c970a505a789b93c2a9d4bdb61848b9cd8e5e6ce72fe920c7bd7966802df8e72e130c0e904c563a5540afae4a
ripemd-160 837bbcefb1f93a302da6769627d21ad4a741e6c4

21081644 as geometric shapes

Circle

Radius = n
Diameter 42163288
Circumference 132459875.83199
Area 1.3962359732871E+15

Sphere

Radius = n
Volume 3.9246599638443E+22
Surface area 5.5849438931485E+15
Circumference 132459875.83199

Square

Length = n
Perimeter 84326576
Area 444435713742736
Diagonal 29813946.861921

Cube

Length = n
Surface area 2666614282456416
Volume 9.3694354980103E+21
Space diagonal 36514478.51508

Equilateral Triangle

Length = n
Perimeter 63244932
Area 1.9244630922514E+14
Altitude 18257239.25754

Triangular Pyramid

Length = n
Surface area 1.9244630922514E+14
Volume 1.1041985627555E+21
Height 9937982.2873071