18949940 (number)

18949940 is an even 8-digits composite number following 18949939 and preceding 18949941. In scientific notation, it is written as 1.8949940 × 10^7. The sum of its digits is 44. It has a total of 5 prime factors and 24 positive divisors. There are 7505568 positive integers (up to 18949940) that are relatively prime to 18949940.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred forty-nine thousand nine hundred forty

Notation

Scientific notation 1.8949940 × 10^7
Engineering notation 1.8949940 × 10^6

Prime Factorization of 18949940

Prime Factorization 2 × 2 × 5 × 103 × 9199

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9474970
Product of the distinct prime numbers

The prime factorization of 18949940 is 2 × 2 × 5 × 103 × 9199. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 7, 15, 4, 155, 93, 7172, 4750, 58740, 3377, 770409, 29799, 4584021, 5515556, 68498176, 2868027, 822591736, 697271740, 5274718295, 9278913175

Basic calculations (n = 18949940)

Multiplication

n×y
n×2 37899880
n×3 56849820
n×4 75799760
n×5 94749700

Division

n÷y
n÷2 9474970
n÷3 6316646.6666667
n÷3 4737485
n÷5 3789988

Exponentiation

ny
n2 359100226003600
n3 6.8049277367547E+21
n4 1.2895297231584E+29
n5 2.4436510882068E+36

Nth Root

y√n
2√n 4353.1528803845
3√n 266.60560754803
4√n 65.978427386416
5√n 28.544442671051

Divisors of 18949940

1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9199, 18398, 36796, 45995, 91990, 183980, 947497, 1894994, 3789988, 4737485, 9474970, 18949940

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 -18949939
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 18949940 can be divided by 24 positive divisors. The sum of these divisors (counting 18949940) is 1, the average is 0.041666666666667.

Base conversion 18949940

Base System Value
2 Binary 1001000010010011100110100
3 Ternary 1022122202102122
4 Quaternary 1020102130310
5 Quinary 14322344230
6 Senary 1514055112
8 Octal 110223464
10 Decimal 18949940
12 Duodecimal 641a498
16 Hexadecimal 1212734
20 Vigesimal 5i8eh0
36 Base36 ba5v8

Cryptographic Hash Functions

md5 423ffc3d9c9d040b0026e477642cc5f4
sha1 5eb3650f24a741c1a95f130e66de1bbebb267abd
sha256 87f779d68be6b806a4588cbec5e70806403534ed9e216fb08a85e994549515fa
sha512 d9a48bd6848db5bcc1455ff0fc4239cd1e05f61b976ee4e7ace87b57e81dfd57730075b334916aaf59da753de1f22b428268f1f7fc9a37940259fb3e6608da19
ripemd-160 c1a71cb8224536113ee56cd848914e666d406933

18949940 as geometric shapes

Circle

Radius = n
Diameter 37899880
Circumference 119065984.57993
Area 1.1281466319153E+15

Sphere

Radius = n
Volume 2.8504414647997E+22
Surface area 4.5125865276614E+15
Circumference 119065984.57993

Square

Length = n
Perimeter 75799760
Area 359100226003600
Diagonal 26799262.154156

Cube

Length = n
Surface area 2154601356021600
Volume 6.8049277367547E+21
Space diagonal 32822258.880382

Equilateral Triangle

Length = n
Perimeter 56849820
Area 1.5549495911193E+14
Altitude 16411129.440191

Triangular Pyramid

Length = n
Surface area 1.5549495911193E+14
Volume 8.0196842469061E+20
Height 8933087.3847188