21081447 (number)

21081447 is an odd 8-digits composite number following 21081446 and preceding 21081448. In scientific notation, it is written as 2.1081447 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 14031888 positive integers (up to 21081447) that are relatively prime to 21081447.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1081447 × 10^7
Engineering notation 2.1081447 × 10^6

Prime Factorization of 21081447

Prime Factorization 3 × 3 × 797 × 2939

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7027149
Product of the distinct prime numbers

The prime factorization of 21081447 is 3 × 3 × 797 × 2939. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 97, 89, 170, 489, 7018, 5980, 22492, 64224, 483688, 553007, 6253219, 6844572, 39781078, 54303845, 874596344, 250682290, 9613596401, 4642755328

Basic calculations (n = 21081447)

Multiplication

n×y
n×2 42162894
n×3 63244341
n×4 84325788
n×5 105407235

Division

n÷y
n÷2 10540723.5
n÷3 7027149
n÷3 5270361.75
n÷5 4216289.4

Exponentiation

ny
n2 444427407613809
n3 9.3691728389579E+21
n4 1.9751572063833E+29
n5 4.1639171963038E+36

Nth Root

y√n
2√n 4591.4536913705
3√n 276.2486338596
4√n 67.760266317146
5√n 29.159500708343

Divisors of 21081447

1, 3, 9, 797, 2391, 2939, 7173, 8817, 26451, 2342383, 7027149, 21081447

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 -21081446
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 21081447 can be divided by 12 positive divisors. The sum of these divisors (counting 21081447) is 1, the average is 0.083333333333333.

Base conversion 21081447

Base System Value
2 Binary 1010000011010110101100111
3 Ternary 1110200001022100
4 Quaternary 1100122311213
5 Quinary 20344101242
6 Senary 2031503143
8 Octal 120326547
10 Decimal 21081447
12 Duodecimal 7087ab3
16 Hexadecimal 141ad67
20 Vigesimal 6bf3c7
36 Base36 cjujr

Cryptographic Hash Functions

md5 c993121ac76bd32822feb72bd8e31bef
sha1 35e3f5cdca278269e23b387c703a7ca3d4abb173
sha256 aab13155482ecf7204c5c188fbddcbda7856cea5d57f17dc4e6b5061d21d0c58
sha512 2527a0af76a0c925d39b944706b86081b5698761de57be27625e7b26686f110ebad4a8e37aed789cdd3a42d31996ed8a4b3dd29f0b12210a0eebbf04963ec8ed
ripemd-160 6db04626e59054cbc03d418f68bc502a78c0fd73

21081447 as geometric shapes

Circle

Radius = n
Diameter 42162894
Circumference 132458638.04449
Area 1.3962098788135E+15

Sphere

Radius = n
Volume 3.9245499414778E+22
Surface area 5.584839515254E+15
Circumference 132458638.04449

Square

Length = n
Perimeter 84325788
Area 444427407613809
Diagonal 29813668.26185

Cube

Length = n
Surface area 2666564445682854
Volume 9.3691728389579E+21
Space diagonal 36514137.30107

Equilateral Triangle

Length = n
Perimeter 63244341
Area 1.9244271256581E+14
Altitude 18257068.650535

Triangular Pyramid

Length = n
Surface area 1.9244271256581E+14
Volume 1.1041676080893E+21
Height 9937889.4206165