12721645 (number)

12721645 is an odd 8-digits composite number following 12721644 and preceding 12721646. In scientific notation, it is written as 1.2721645 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 9734736 positive integers (up to 12721645) that are relatively prime to 12721645.

Interesting facts

Basic properties

Name

Name twelve million seven hundred twenty-one thousand six hundred forty-five

Notation

Scientific notation 1.2721645 × 10^7
Engineering notation 1.2721645 × 10^6

Prime Factorization of 12721645

Prime Factorization 5 × 23 × 110623

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12721645
Product of the distinct prime numbers

The prime factorization of 12721645 is 5 × 23 × 110623. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12721645)

Multiplication

n×y
n×2 25443290
n×3 38164935
n×4 50886580
n×5 63608225

Division

n÷y
n÷2 6360822.5
n÷3 4240548.3333333
n÷3 3180411.25
n÷5 2544329

Exponentiation

ny
n2 161840251506025
n3 2.0588742263704E+21
n4 2.6192267007533E+28
n5 3.3320872261505E+35

Nth Root

y√n
2√n 3566.7415101182
3√n 233.44312633428
4√n 59.722202823725
5√n 26.357769422835

Divisors of 12721645

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12721644
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12721645 can be divided by 8 positive divisors. The sum of these divisors (counting 12721645) is 1, the average is 0.125.

Base conversion 12721645

Base System Value
2 Binary 110000100001110111101101
3 Ternary 212221022211001
4 Quaternary 300201313231
5 Quinary 11224043040
6 Senary 1132400301
8 Octal 60416755
10 Decimal 12721645
12 Duodecimal 4316091
16 Hexadecimal c21ded
20 Vigesimal 3ja425
36 Base36 7ko31

Cryptographic Hash Functions

md5 9a59e714244b2fd311733dbb985e1995
sha1 8d336f103339b54251ee01befd02f7fcc9f62728
sha256 173e1d9ab8ec0ad7b730ef45dff31251211d2465e8a770f039285a070f2b4760
sha512 6f934821fe3563ba0264d7e01a9c045bb3e56ad8d46ffb70ac21a5f029c1a828d2fe6ef6ba0336340e8a6f05172d0aea2a05bbf22e15bc082dc7c187127334f8
ripemd-160 88505360717d2a3e6461fa5946d736acddc45b65

12721645 as geometric shapes

Circle

Radius = n
Diameter 25443290
Circumference 79932452.947155
Area 5.0843614518645E+14

Sphere

Radius = n
Volume 8.6241921923073E+21
Surface area 2.0337445807458E+15
Circumference 79932452.947155

Square

Length = n
Perimeter 50886580
Area 161840251506025
Diagonal 17991122.894696

Cube

Length = n
Surface area 971041509036150
Volume 2.0588742263704E+21
Space diagonal 22034535.495855

Equilateral Triangle

Length = n
Perimeter 38164935
Area 70078884579540
Altitude 11017267.747927

Triangular Pyramid

Length = n
Surface area 70078884579540
Volume 2.4264065451278E+20
Height 5997040.9648986