18388940 (number)

18388940 is an even 8-digits composite number following 18388939 and preceding 18388941. In scientific notation, it is written as 1.8388940 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 7355568 positive integers (up to 18388940) that are relatively prime to 18388940.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8388940 × 10^7
Engineering notation 1.8388940 × 10^6

Prime Factorization of 18388940

Prime Factorization 2 × 2 × 5 × 919447

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9194470
Product of the distinct prime numbers

The prime factorization of 18388940 is 2 × 2 × 5 × 919447. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 85, 53, 414, 12, 9431, 8974, 96141, 36397, 14778, 616475, 873117, 6517125, 44825731, 35222302, 629380309, 946233459, 2193417590, 7221443469

Basic calculations (n = 18388940)

Multiplication

n×y
n×2 36777880
n×3 55166820
n×4 73555760
n×5 91944700

Division

n÷y
n÷2 9194470
n÷3 6129646.6666667
n÷3 4597235
n÷5 3677788

Exponentiation

ny
n2 338153114323600
n3 6.2182773301098E+21
n4 1.1434752872675E+29
n5 2.1027298449045E+36

Nth Root

y√n
2√n 4288.2327362213
3√n 263.94831785981
4√n 65.484599229294
5√n 28.373397288439

Divisors of 18388940

1, 2, 4, 5, 10, 20, 919447, 1838894, 3677788, 4597235, 9194470, 18388940

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 -18388939
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 18388940 can be divided by 12 positive divisors. The sum of these divisors (counting 18388940) is 1, the average is 0.083333333333333.

Base conversion 18388940

Base System Value
2 Binary 1000110001001011111001100
3 Ternary 1021121020212212
4 Quaternary 1012021133030
5 Quinary 14201421230
6 Senary 1454045552
8 Octal 106113714
10 Decimal 18388940
12 Duodecimal 61a98b8
16 Hexadecimal 11897cc
20 Vigesimal 5eic70
36 Base36 ay4zw

Cryptographic Hash Functions

md5 75121a085421206e719c99115002c974
sha1 16b8d71cb0421f84f14b23849875f2f55bc86634
sha256 30853c24824d8a308923fb52b53c1b2f94aa8b2a194ea3d49cf0a5d9853c0941
sha512 1d54aa66d349454d12038756e5a300f19760c42575b966e3cc639d53ab4bdbb1693f0a2e1fe1a46f6e84874fa8f208e39559a735a87e86a705ad1b65e93bb204
ripemd-160 d4978a4ae0aaa88b0a6c7836e0e7da0d65047d47

18388940 as geometric shapes

Circle

Radius = n
Diameter 36777880
Circumference 115541117.62261
Area 1.0623393397475E+15

Sphere

Radius = n
Volume 2.6047059171009E+22
Surface area 4.2493573589901E+15
Circumference 115541117.62261

Square

Length = n
Perimeter 73555760
Area 338153114323600
Diagonal 26005888.345665

Cube

Length = n
Surface area 2028918685941600
Volume 6.2182773301098E+21
Space diagonal 31850578.377336

Equilateral Triangle

Length = n
Perimeter 55166820
Area 1.4642459368653E+14
Altitude 15925289.188668

Triangular Pyramid

Length = n
Surface area 1.4642459368653E+14
Volume 7.3283101123654E+20
Height 8668629.448555