21081408 (number)

21081408 is an even 8-digits composite number following 21081407 and preceding 21081409. In scientific notation, it is written as 2.1081408 × 10^7. The sum of its digits is 24. It has a total of 9 prime factors and 56 positive divisors. There are 6904320 positive integers (up to 21081408) that are relatively prime to 21081408.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand four hundred eight

Notation

Scientific notation 2.1081408 × 10^7
Engineering notation 2.1081408 × 10^6

Prime Factorization of 21081408

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 3 × 59 × 1861

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 658794
Product of the distinct prime numbers

The prime factorization of 21081408 is 2 × 2 × 2 × 2 × 2 × 2 × 3 × 59 × 1861. Since it has a total of 9 prime factors.

Most popular turbo-numbers

4, 8, 91, 27, 298, 359, 6804, 204, 99835, 45600, 129790, 258019, 2058534, 2563821, 11100440, 91004068, 326916058, 616623133, 9238615713, 4601912456

Basic calculations (n = 21081408)

Multiplication

n×y
n×2 42162816
n×3 63244224
n×4 84325632
n×5 105407040

Division

n÷y
n÷2 10540704
n÷3 7027136
n÷3 5270352
n÷5 4216281.6

Exponentiation

ny
n2 444425763262464
n3 9.3691208410474E+21
n4 1.9751425905142E+29
n5 4.1638786808808E+36

Nth Root

y√n
2√n 4591.4494443476
3√n 276.24846350913
4√n 67.760234978545
5√n 29.159489919507

Divisors of 21081408

1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 59, 64, 96, 118, 177, 192, 236, 354, 472, 708, 944, 1416, 1861, 1888, 2832, 3722, 3776, 5583, 5664, 7444, 11166, 11328, 14888, 22332, 29776, 44664, 59552, 89328, 109799, 119104, 178656, 219598, 329397, 357312, 439196, 658794, 878392, 1317588, 1756784, 2635176, 3513568, 5270352, 7027136, 10540704, 21081408

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21081407
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081408 can be divided by 56 positive divisors. The sum of these divisors (counting 21081408) is 1, the average is 0.017857142857143.

Base conversion 21081408

Base System Value
2 Binary 1010000011010110101000000
3 Ternary 1110200001020220
4 Quaternary 1100122311000
5 Quinary 20344101113
6 Senary 2031503040
8 Octal 120326500
10 Decimal 21081408
12 Duodecimal 7087a80
16 Hexadecimal 141ad40
20 Vigesimal 6bf3a8
36 Base36 cjuio

Cryptographic Hash Functions

md5 b82611325fe3a26c0966ff6dca53f56d
sha1 7568128cb9419573e7c120fbf6e1c387ca08e8c5
sha256 efddddbd406fbdb9a2ce55ea19bba9e4ec6af87855229644e9532cfef90fc052
sha512 30cee3423e46afe8ccbbc07701f5c3d0c6e3b7fc6f363bd8b8c82de3e290d537fd3b0c66ba9356df02d6b43d35c7dc3c2aa6e2a8c28afbf15e2968e5dd95dea2
ripemd-160 eec6d4a444f9b2350f813a36142d575eb51c8355

21081408 as geometric shapes

Circle

Radius = n
Diameter 42162816
Circumference 132458393.00026
Area 1.3962047129314E+15

Sphere

Radius = n
Volume 3.9245281606439E+22
Surface area 5.5848188517256E+15
Circumference 132458393.00026

Square

Length = n
Perimeter 84325632
Area 444425763262464
Diagonal 29813613.107521

Cube

Length = n
Surface area 2666554579574784
Volume 9.3691208410474E+21
Space diagonal 36514069.751089

Equilateral Triangle

Length = n
Perimeter 63244224
Area 1.9244200054079E+14
Altitude 18257034.875544

Triangular Pyramid

Length = n
Surface area 1.9244200054079E+14
Volume 1.1041614800768E+21
Height 9937871.0358402