18943938 (number)

18943938 is an even 8-digits composite number following 18943937 and preceding 18943939. In scientific notation, it is written as 1.8943938 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors. There are 5743872 positive integers (up to 18943938) that are relatively prime to 18943938.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred forty-three thousand nine hundred thirty-eight

Notation

Scientific notation 1.8943938 × 10^7
Engineering notation 1.8943938 × 10^6

Prime Factorization of 18943938

Prime Factorization 2 × 9 × 13 × 73 × 1109

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 18943938
Product of the distinct prime numbers

The prime factorization of 18943938 is 2 × 9 × 13 × 73 × 1109. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 2, 17, 13, 529, 671, 2778, 3241, 75493, 75715, 307270, 631356, 9114106, 8054748, 19230847, 6959089, 477740919, 511045392, 1340290390, 778314536

Basic calculations (n = 18943938)

Multiplication

n×y
n×2 37887876
n×3 56831814
n×4 75775752
n×5 94719690

Division

n÷y
n÷2 9471969
n÷3 6314646
n÷3 4735984.5
n÷5 3788787.6

Exponentiation

ny
n2 358872786947844
n3 6.7984638258272E+21
n4 1.2878967721171E+29
n5 2.4397836601387E+36

Nth Root

y√n
2√n 4352.4634403979
3√n 266.57745731245
4√n 65.973202441581
5√n 28.542634270028

Divisors of 18943938

1, 2, 9, 13, 18, 26, 73, 117, 146, 234, 657, 949, 1109, 1314, 1898, 2218, 8541, 9981, 14417, 17082, 19962, 28834, 80957, 129753, 161914, 259506, 728613, 1052441, 1457226, 2104882, 9471969, 18943938

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18943937
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18943938 can be divided by 32 positive divisors. The sum of these divisors (counting 18943938) is 1, the average is 0.03125.

Base conversion 18943938

Base System Value
2 Binary 1001000010000111111000010
3 Ternary 1022122110012100
4 Quaternary 1020100333002
5 Quinary 14322201223
6 Senary 1514011230
8 Octal 110207702
10 Decimal 18943938
12 Duodecimal 6416b16
16 Hexadecimal 1210fc2
20 Vigesimal 5i7jgi
36 Base36 ba18i

Cryptographic Hash Functions

md5 0689414b5cd2055ab3540c2cdcb1ef60
sha1 27de5c03f249cd853d1cfadd2a7bfae39b9e99e7
sha256 3a37989fe046d93910b7e7c4317c69244394b8704401b3c63b873becdb4ec258
sha512 071c326794d8375db9af7587b9914c92939e0397d2fd7e8539d00e16fe124304322eab6f0801e2b49154eddde4d752b716a83db55ca56b479502843d111f2113
ripemd-160 f947c080aa39c654e1637fa62cad50a3a1e41fb8

18943938 as geometric shapes

Circle

Radius = n
Diameter 37887876
Circumference 119028272.90172
Area 1.1274321110486E+15

Sphere

Radius = n
Volume 2.8477338681219E+22
Surface area 4.5097284441946E+15
Circumference 119028272.90172

Square

Length = n
Perimeter 75775752
Area 358872786947844
Diagonal 26790774.044355

Cube

Length = n
Surface area 2153236721687064
Volume 6.7984638258272E+21
Space diagonal 32811863.111435

Equilateral Triangle

Length = n
Perimeter 56831814
Area 1.5539647511188E+14
Altitude 16405931.555717

Triangular Pyramid

Length = n
Surface area 1.5539647511188E+14
Volume 8.012066454823E+20
Height 8930258.014785