18394490 (number)

18394490 is an even 8-digits composite number following 18394489 and preceding 18394491. In scientific notation, it is written as 1.8394490 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 7357792 positive integers (up to 18394490) that are relatively prime to 18394490.

Interesting facts

Basic properties

Name

Name eighteen million three hundred ninety-four thousand four hundred ninety

Notation

Scientific notation 1.8394490 × 10^7
Engineering notation 1.8394490 × 10^6

Prime Factorization of 18394490

Prime Factorization 2 × 5 × 1839449

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18394490
Product of the distinct prime numbers

The prime factorization of 18394490 is 2 × 5 × 1839449. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18394490)

Multiplication

n×y
n×2 36788980
n×3 55183470
n×4 73577960
n×5 91972450

Division

n÷y
n÷2 9197245
n÷3 6131496.6666667
n÷3 4598622.5
n÷5 3678898

Exponentiation

ny
n2 338357262360100
n3 6.2239092789102E+21
n4 1.1448563699182E+29
n5 2.1059049047897E+36

Nth Root

y√n
2√n 4288.8798071291
3√n 263.97486943216
4√n 65.489539677181
5√n 28.375109767218

Divisors of 18394490

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 -18394489
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 18394490 can be divided by 8 positive divisors. The sum of these divisors (counting 18394490) is 1, the average is 0.125.

Base conversion 18394490

Base System Value
2 Binary 1000110001010110101111010
3 Ternary 1021121112111102
4 Quaternary 1012022311322
5 Quinary 14202110430
6 Senary 1454131402
8 Octal 106126572
10 Decimal 18394490
12 Duodecimal 61b0b62
16 Hexadecimal 118ad7a
20 Vigesimal 5ej64a
36 Base36 ay9a2

Cryptographic Hash Functions

md5 d4967d61c549b437f1b5fcc44078fe91
sha1 eb893820bf01b7c7f3190bdf156567f304d97fa8
sha256 752d4e52edc5c7df87ddd5a3d1b7543cad327b4c59115da52a2d9f808d7794ba
sha512 d3b565f1b2999e8a6df87eaabfc5525dcacee84bd849d11f26e0bce77a786be04b6e56f5054b684b0bc292ae7b3903d7d66d47b2d3429c2e1f20d6e30ac11bd2
ripemd-160 9d56fbb615964b3ea06761f509bdc0954c61e8d1

18394490 as geometric shapes

Circle

Radius = n
Diameter 36788980
Circumference 115575989.30106
Area 1.0629806897192E+15

Sphere

Radius = n
Volume 2.6070650222978E+22
Surface area 4.251922758877E+15
Circumference 115575989.30106

Square

Length = n
Perimeter 73577960
Area 338357262360100
Diagonal 26013737.230936

Cube

Length = n
Surface area 2030143574160600
Volume 6.2239092789102E+21
Space diagonal 31860191.259318

Equilateral Triangle

Length = n
Perimeter 55183470
Area 1.465129923794E+14
Altitude 15930095.629659

Triangular Pyramid

Length = n
Surface area 1.465129923794E+14
Volume 7.3349474276788E+20
Height 8671245.7436454