18387768 (number)

18387768 is an even 8-digits composite number following 18387767 and preceding 18387769. In scientific notation, it is written as 1.8387768 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 16 positive divisors. There are 5253600 positive integers (up to 18387768) that are relatively prime to 18387768.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-seven thousand seven hundred sixty-eight

Notation

Scientific notation 1.8387768 × 10^7
Engineering notation 1.8387768 × 10^6

Prime Factorization of 18387768

Prime Factorization 2 × 2 × 2 × 21 × 109451

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4596942
Product of the distinct prime numbers

The prime factorization of 18387768 is 2 × 2 × 2 × 21 × 109451. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 6, 49, 38, 389, 808, 710, 3344, 40533, 53716, 465505, 543463, 3667779, 7038863, 32914168, 77406913, 922735246, 278555747, 5650473580, 3652601138

Basic calculations (n = 18387768)

Multiplication

n×y
n×2 36775536
n×3 55163304
n×4 73551072
n×5 91938840

Division

n÷y
n÷2 9193884
n÷3 6129256
n÷3 4596942
n÷5 3677553.6

Exponentiation

ny
n2 338110012021824
n3 6.2170884595345E+21
n4 1.143183802294E+29
n5 2.102059853794E+36

Nth Root

y√n
2√n 4288.0960810131
3√n 263.94271025
4√n 65.483555806119
5√n 28.373035609414

Divisors of 18387768

1, 2, 4, 8, 21, 42, 84, 168, 109451, 218902, 437804, 875608, 2298471, 4596942, 9193884, 18387768

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18387767
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18387768 can be divided by 16 positive divisors. The sum of these divisors (counting 18387768) is 1, the average is 0.0625.

Base conversion 18387768

Base System Value
2 Binary 1000110001001001100111000
3 Ternary 1021121012021110
4 Quaternary 1012021030320
5 Quinary 14201402033
6 Senary 1454040320
8 Octal 106111470
10 Decimal 18387768
12 Duodecimal 61a90a0
16 Hexadecimal 1189338
20 Vigesimal 5ei988
36 Base36 ay43c

Cryptographic Hash Functions

md5 e1d75d529b13405078b04836e094d8c1
sha1 5710dc6d3fe452400218f2f0d32e21802bd7f424
sha256 037feabf9ecc895e4c847da8c2b2f0c3ddfa67c4942b1addaa83538efa0743cd
sha512 ee8950d4ca37570b2562dcebc51f3bec2775b2cdb0c49f8922530a12aec279604285765c2f65268d03c5490a2c57359bea4779adc3200f47636cc3e99e2e0a3d
ripemd-160 d1cbf9afa117d0614f155ff2e22d8efd679180a1

18387768 as geometric shapes

Circle

Radius = n
Diameter 36775536
Circumference 115533753.72943
Area 1.0622039298729E+15

Sphere

Radius = n
Volume 2.6042079241589E+22
Surface area 4.2488157194917E+15
Circumference 115533753.72943

Square

Length = n
Perimeter 73551072
Area 338110012021824
Diagonal 26004230.88737

Cube

Length = n
Surface area 2028660072130944
Volume 6.2170884595345E+21
Space diagonal 31848548.413789

Equilateral Triangle

Length = n
Perimeter 55163304
Area 1.4640592984238E+14
Altitude 15924274.206895

Triangular Pyramid

Length = n
Surface area 1.4640592984238E+14
Volume 7.3269090149558E+20
Height 8668076.9624567