18243387 (number)

18243387 is an odd 8-digits composite number following 18243386 and preceding 18243388. In scientific notation, it is written as 1.8243387 × 10^7. The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors. There are 12162204 positive integers (up to 18243387) that are relatively prime to 18243387.

Interesting facts

Basic properties

Name

Name eighteen million two hundred forty-three thousand three hundred eighty-seven

Notation

Scientific notation 1.8243387 × 10^7
Engineering notation 1.8243387 × 10^6

Prime Factorization of 18243387

Prime Factorization 81 × 225227

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18243387
Product of the distinct prime numbers

The prime factorization of 18243387 is 81 × 225227. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18243387)

Multiplication

n×y
n×2 36486774
n×3 54730161
n×4 72973548
n×5 91216935

Division

n÷y
n÷2 9121693.5
n÷3 6081129
n÷3 4560846.75
n÷5 3648677.4

Exponentiation

ny
n2 332821169231769
n3 6.0717853920877E+21
n4 1.107699306888E+29
n5 2.020818713519E+36

Nth Root

y√n
2√n 4271.2278094244
3√n 263.25006696373
4√n 65.354631124537
5√n 28.328337910374

Divisors of 18243387

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18243386
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18243387 can be divided by 4 positive divisors. The sum of these divisors (counting 18243387) is 1, the average is 0.25.

Base conversion 18243387

Base System Value
2 Binary 1000101100101111100111011
3 Ternary 1021022212020000
4 Quaternary 1011211330323
5 Quinary 14132242022
6 Senary 1451004043
8 Octal 105457473
10 Decimal 18243387
12 Duodecimal 6139623
16 Hexadecimal 1165f3b
20 Vigesimal 5e0897
36 Base36 av0or

Cryptographic Hash Functions

md5 695b245964d7cafaa65e929d44b71270
sha1 fefe95cac94ad7506d2179107343f448483e65b2
sha256 f94223cb61e4da18b2c9f52679e7fb64a499c13ed71cff9299bd51222e7e96fc
sha512 400ab2bf262b3ca74dd0b27dbefb606ca5cc6817fe9912add20f7460b3bb8532b243bdf3735550c2b950907614fd47bb13467b092e6a98a89c7d815a86f97322
ripemd-160 5c710c16eec968c795c46f01da793192f662f8e5

18243387 as geometric shapes

Circle

Radius = n
Diameter 36486774
Circumference 114626581.15159
Area 1.0455885402177E+15

Sphere

Radius = n
Volume 2.5433435175942E+22
Surface area 4.1823541608708E+15
Circumference 114626581.15159

Square

Length = n
Perimeter 72973548
Area 332821169231769
Diagonal 25800045.319021

Cube

Length = n
Surface area 1996927015390614
Volume 6.0717853920877E+21
Space diagonal 31598473.186142

Equilateral Triangle

Length = n
Perimeter 54730161
Area 1.4411579373598E+14
Altitude 15799236.593071

Triangular Pyramid

Length = n
Surface area 1.4411579373598E+14
Volume 7.1556677077577E+20
Height 8600015.1063403