18943940 (number)

18943940 is an even 8-digits composite number following 18943939 and preceding 18943941. In scientific notation, it is written as 1.8943940 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 7577568 positive integers (up to 18943940) that are relatively prime to 18943940.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8943940 × 10^7
Engineering notation 1.8943940 × 10^6

Prime Factorization of 18943940

Prime Factorization 2 × 2 × 5 × 947197

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9471970
Product of the distinct prime numbers

The prime factorization of 18943940 is 2 × 2 × 5 × 947197. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 34, 27, 939, 160, 1792, 3017, 93875, 60979, 323451, 771507, 9236669, 782570, 55892878, 34807358, 893448349, 355093922, 8586909090, 9668185164

Basic calculations (n = 18943940)

Multiplication

n×y
n×2 37887880
n×3 56831820
n×4 75775760
n×5 94719700

Division

n÷y
n÷2 9471970
n÷3 6314646.6666667
n÷3 4735985
n÷5 3788788

Exponentiation

ny
n2 358872862723600
n3 6.7984659790641E+21
n4 1.2878973159943E+29
n5 2.4397849480357E+36

Nth Root

y√n
2√n 4352.4636701528
3√n 266.57746669372
4√n 65.973204182856
5√n 28.542634872704

Divisors of 18943940

1, 2, 4, 5, 10, 20, 947197, 1894394, 3788788, 4735985, 9471970, 18943940

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 -18943939
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 18943940 can be divided by 12 positive divisors. The sum of these divisors (counting 18943940) is 1, the average is 0.083333333333333.

Base conversion 18943940

Base System Value
2 Binary 1001000010000111111000100
3 Ternary 1022122110012102
4 Quaternary 1020100333010
5 Quinary 14322201230
6 Senary 1514011232
8 Octal 110207704
10 Decimal 18943940
12 Duodecimal 6416b18
16 Hexadecimal 1210fc4
20 Vigesimal 5i7jh0
36 Base36 ba18k

Cryptographic Hash Functions

md5 fcb6596b411cec0e448b910f79dd9a3c
sha1 1a40d2957af709893c67bc0664aa4e6d8f02b105
sha256 32078f8e1bb4a521ce41cf9cedd2093a1dfab1f40f0929a99c162c623a2c40eb
sha512 94e6bec736f8b457263de4fbf38148cbfb031387c8732e850394a4e6b307855a2e8ef403a091b6b98288926cccd149f454ec274f0a886dd8fed5e8f6c75adceb
ripemd-160 82b76c4958d205b0fedddfbbcf25845a6f53ecfc

18943940 as geometric shapes

Circle

Radius = n
Diameter 37887880
Circumference 119028285.46809
Area 1.1274323491052E+15

Sphere

Radius = n
Volume 2.8477347700677E+22
Surface area 4.5097293964208E+15
Circumference 119028285.46809

Square

Length = n
Perimeter 75775760
Area 358872862723600
Diagonal 26790776.872782

Cube

Length = n
Surface area 2153237176341600
Volume 6.7984659790641E+21
Space diagonal 32811866.575536

Equilateral Triangle

Length = n
Perimeter 56831820
Area 1.5539650792374E+14
Altitude 16405933.287768

Triangular Pyramid

Length = n
Surface area 1.5539650792374E+14
Volume 8.0120689924371E+20
Height 8930258.9575941