18386988 (number)

18386988 is an even 8-digits composite number following 18386987 and preceding 18386989. In scientific notation, it is written as 1.8386988 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 12 positive divisors. There are 6128992 positive integers (up to 18386988) that are relatively prime to 18386988.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-six thousand nine hundred eighty-eight

Notation

Scientific notation 1.8386988 × 10^7
Engineering notation 1.8386988 × 10^6

Prime Factorization of 18386988

Prime Factorization 2 × 2 × 3 × 1532249

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9193494
Product of the distinct prime numbers

The prime factorization of 18386988 is 2 × 2 × 3 × 1532249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18386988)

Multiplication

n×y
n×2 36773976
n×3 55160964
n×4 73547952
n×5 91934940

Division

n÷y
n÷2 9193494
n÷3 6128996
n÷3 4596747
n÷5 3677397.6

Exponentiation

ny
n2 338081327712144
n3 6.2162973156673E+21
n4 1.1429898414761E+29
n5 2.1016140499342E+36

Nth Root

y√n
2√n 4288.0051305939
3√n 263.93897809094
4√n 65.482861350081
5√n 28.37279489131

Divisors of 18386988

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 -18386987
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 18386988 can be divided by 12 positive divisors. The sum of these divisors (counting 18386988) is 1, the average is 0.083333333333333.

Base conversion 18386988

Base System Value
2 Binary 1000110001001000000101100
3 Ternary 1021121011012120
4 Quaternary 1012021000230
5 Quinary 14201340423
6 Senary 1454032540
8 Octal 106110054
10 Decimal 18386988
12 Duodecimal 61a8750
16 Hexadecimal 118902c
20 Vigesimal 5ei798
36 Base36 ay3ho

Cryptographic Hash Functions

md5 d2122e6933bc2cfccc5484cd993b8146
sha1 e2783852945b04aa55d8e7379d3fdfc571634199
sha256 90f48839f62112c82bc345b77b6c55b7c8e3debea86ed8625f8324f4f621d316
sha512 a3cb953936abf3270911c422a3c86a5460cc5bdad59a125c710e2fcacd2ab5bb9d9b90633beb051b296547172955310d922456d97f38ac5ddb5362c7868e029f
ripemd-160 79810e85921dcb103201ed24f1dae11dfc03d743

18386988 as geometric shapes

Circle

Radius = n
Diameter 36773976
Circumference 115528852.84489
Area 1.0621138154564E+15

Sphere

Radius = n
Volume 2.6038765305907E+22
Surface area 4.2484552618254E+15
Circumference 115528852.84489

Square

Length = n
Perimeter 73547952
Area 338081327712144
Diagonal 26003127.800791

Cube

Length = n
Surface area 2028487966272864
Volume 6.2162973156673E+21
Space diagonal 31847197.414159

Equilateral Triangle

Length = n
Perimeter 55160964
Area 1.4639350917194E+14
Altitude 15923598.70708

Triangular Pyramid

Length = n
Surface area 1.4639350917194E+14
Volume 7.3259766429668E+20
Height 8667709.2669305