12721821 (number)

12721821 is an odd 8-digits composite number following 12721820 and preceding 12721822. In scientific notation, it is written as 1.2721821 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors. There are 7070112 positive integers (up to 12721821) that are relatively prime to 12721821.

Interesting facts

Basic properties

Name

Name twelve million seven hundred twenty-one thousand eight hundred twenty-one

Notation

Scientific notation 1.2721821 × 10^7
Engineering notation 1.2721821 × 10^6

Prime Factorization of 12721821

Prime Factorization 3 × 7 × 7 × 37 × 2339

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1817403
Product of the distinct prime numbers

The prime factorization of 12721821 is 3 × 7 × 7 × 37 × 2339. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 9, 94, 73, 69, 329, 5395, 3434, 73417, 64287, 888975, 387520, 5715945, 4563407, 79456014, 94978629, 546205312, 992272259, 1621245738, 6995564922

Basic calculations (n = 12721821)

Multiplication

n×y
n×2 25443642
n×3 38165463
n×4 50887284
n×5 63609105

Division

n÷y
n÷2 6360910.5
n÷3 4240607
n÷3 3180455.25
n÷5 2544364.2

Exponentiation

ny
n2 161844729556041
n3 2.0589596792054E+21
n4 2.6193716485068E+28
n5 3.3323177244778E+35

Nth Root

y√n
2√n 3566.7661824123
3√n 233.44420286698
4√n 59.722409382177
5√n 26.357842352739

Divisors of 12721821

1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 2339, 5439, 7017, 16373, 49119, 86543, 114611, 259629, 343833, 605801, 1817403, 4240607, 12721821

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12721820
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12721821 can be divided by 24 positive divisors. The sum of these divisors (counting 12721821) is 1, the average is 0.041666666666667.

Base conversion 12721821

Base System Value
2 Binary 110000100001111010011101
3 Ternary 212221100001120
4 Quaternary 300201322131
5 Quinary 11224044241
6 Senary 1132401153
8 Octal 60417235
10 Decimal 12721821
12 Duodecimal 43161b9
16 Hexadecimal c21e9d
20 Vigesimal 3ja4b1
36 Base36 7ko7x

Cryptographic Hash Functions

md5 647fbdf641c6f462f7ef17f1a3b14acc
sha1 415d3c79d07ad4a9bd6533d6980add1e1c882607
sha256 af48caa2b3d2bd7c06d3ef05843bd6c0c8e15e083433c1d3e03cdc17936f0cb8
sha512 d1dd551f22a3235896453664dc90ba1ae26414788b1b06480a3151a744c8876fdf8aafe759b4a9c8254234b42ec2f0fda11a3a77fa3aebb440d6fb4debb7717b
ripemd-160 e5e0fdd892b4979619c52861d4a3802f82e56de2

12721821 as geometric shapes

Circle

Radius = n
Diameter 25443642
Circumference 79933558.787769
Area 5.0845021339549E+14

Sphere

Radius = n
Volume 8.6245501363056E+21
Surface area 2.0338008535819E+15
Circumference 79933558.787769

Square

Length = n
Perimeter 50887284
Area 161844729556041
Diagonal 17991371.796283

Cube

Length = n
Surface area 971068377336246
Volume 2.0589596792054E+21
Space diagonal 22034840.336797

Equilateral Triangle

Length = n
Perimeter 38165463
Area 70080823632077
Altitude 11017420.168398

Triangular Pyramid

Length = n
Surface area 70080823632077
Volume 2.4265072522597E+20
Height 5997123.9320943