21081386 (number)

21081386 is an even 8-digits composite number following 21081385 and preceding 21081387. In scientific notation, it is written as 2.1081386 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 9891024 positive integers (up to 21081386) that are relatively prime to 21081386.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand three hundred eighty-six

Notation

Scientific notation 2.1081386 × 10^7
Engineering notation 2.1081386 × 10^6

Prime Factorization of 21081386

Prime Factorization 2 × 23 × 53 × 8647

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21081386
Product of the distinct prime numbers

The prime factorization of 21081386 is 2 × 23 × 53 × 8647. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 64, 8, 707, 770, 8768, 9993, 92679, 38717, 667728, 621652, 3098985, 8940811, 39969138, 66969860, 582154357, 466565422, 5245342197, 7171280997

Basic calculations (n = 21081386)

Multiplication

n×y
n×2 42162772
n×3 63244158
n×4 84325544
n×5 105406930

Division

n÷y
n÷2 10540693
n÷3 7027128.6666667
n÷3 5270346.5
n÷5 4216277.2

Exponentiation

ny
n2 444424835680996
n3 9.3690915089776E+21
n4 1.9751343457008E+29
n5 4.1638569543576E+36

Nth Root

y√n
2√n 4591.4470485894
3√n 276.2483674139
4√n 67.760217300341
5√n 29.15948383349

Divisors of 21081386

1, 2, 23, 46, 53, 106, 1219, 2438, 8647, 17294, 198881, 397762, 458291, 916582, 10540693, 21081386

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 -21081385
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 21081386 can be divided by 16 positive divisors. The sum of these divisors (counting 21081386) is 1, the average is 0.0625.

Base conversion 21081386

Base System Value
2 Binary 1010000011010110100101010
3 Ternary 1110200001020002
4 Quaternary 1100122310222
5 Quinary 20344101021
6 Senary 2031503002
8 Octal 120326452
10 Decimal 21081386
12 Duodecimal 7087a62
16 Hexadecimal 141ad2a
20 Vigesimal 6bf396
36 Base36 cjui2

Cryptographic Hash Functions

md5 d2598dc534f55b395302d3f3d06519cf
sha1 0698f33a560dee04060bc2041d7414855ad74dfe
sha256 25003df3357f4998dcdd52d0bcbde5ca053d2392aeec79f6be2aa0666c246ad3
sha512 81ff2ba0512867a87c70e7a58dfbe5bb9fa572d435ceb934596f04611b20b578a007eff26dae5d14c275598659e978e7a35422ea0ad70f84cec0adeaceaa15ed
ripemd-160 43bc4f48afb48ef83268545aa18e2c7da5752a9a

21081386 as geometric shapes

Circle

Radius = n
Diameter 42162772
Circumference 132458254.77018
Area 1.3962017988483E+15

Sphere

Radius = n
Volume 3.9245158740553E+22
Surface area 5.5848071953931E+15
Circumference 132458254.77018

Square

Length = n
Perimeter 84325544
Area 444424835680996
Diagonal 29813581.994822

Cube

Length = n
Surface area 2666549014085976
Volume 9.3690915089776E+21
Space diagonal 36514031.645971

Equilateral Triangle

Length = n
Perimeter 63244158
Area 1.9244159888623E+14
Altitude 18257015.822986

Triangular Pyramid

Length = n
Surface area 1.9244159888623E+14
Volume 1.1041580232592E+21
Height 9937860.6649408