18388942 (number)

18388942 is an even 8-digits composite number following 18388941 and preceding 18388943. In scientific notation, it is written as 1.8388942 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 7633920 positive integers (up to 18388942) that are relatively prime to 18388942.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8388942 × 10^7
Engineering notation 1.8388942 × 10^6

Prime Factorization of 18388942

Prime Factorization 2 × 143 × 113 × 569

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18388942
Product of the distinct prime numbers

The prime factorization of 18388942 is 2 × 143 × 113 × 569. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 94, 33, 947, 766, 9682, 886, 96242, 76212, 622844, 978521, 5736112, 8806919, 55967858, 99583238, 982492267, 668275488, 683255931, 2050989467

Basic calculations (n = 18388942)

Multiplication

n×y
n×2 36777884
n×3 55166826
n×4 73555768
n×5 91944710

Division

n÷y
n÷2 9194471
n÷3 6129647.3333333
n÷3 4597235.5
n÷5 3677788.4

Exponentiation

ny
n2 338153187879364
n3 6.2182793590287E+21
n4 1.1434757847298E+29
n5 2.10273098838E+36

Nth Root

y√n
2√n 4288.2329694176
3√n 263.9483274289
4√n 65.484601009837
5√n 28.373397905623

Divisors of 18388942

1, 2, 113, 143, 226, 286, 569, 1138, 16159, 32318, 64297, 81367, 128594, 162734, 9194471, 18388942

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 -18388941
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 18388942 can be divided by 16 positive divisors. The sum of these divisors (counting 18388942) is 1, the average is 0.0625.

Base conversion 18388942

Base System Value
2 Binary 1000110001001011111001110
3 Ternary 1021121020212221
4 Quaternary 1012021133032
5 Quinary 14201421232
6 Senary 1454045554
8 Octal 106113716
10 Decimal 18388942
12 Duodecimal 61a98ba
16 Hexadecimal 11897ce
20 Vigesimal 5eic72
36 Base36 ay4zy

Cryptographic Hash Functions

md5 7fa5a67640402397be0f7da90bdcaf81
sha1 3af5ea68b706b27f462b33e80046985853eea62d
sha256 29fc558281726f4fbb3e5202f9df0760c63ee920336efe17f138139d127e281c
sha512 498756e44011e0120228095bb6bd47b6b30be45b669aadc3167a72ee2140fa7d68ca758ae3acc6f1ebea65842b374acba31622c01841b62e7b24f8b182123f38
ripemd-160 925192bf3b4d1b8cd3d9d8f32db2232329a97974

18388942 as geometric shapes

Circle

Radius = n
Diameter 36777884
Circumference 115541130.18898
Area 1.0623395708298E+15

Sphere

Radius = n
Volume 2.6047067669725E+22
Surface area 4.2493582833191E+15
Circumference 115541130.18898

Square

Length = n
Perimeter 73555768
Area 338153187879364
Diagonal 26005891.174092

Cube

Length = n
Surface area 2028919127276184
Volume 6.2182793590287E+21
Space diagonal 31850581.841437

Equilateral Triangle

Length = n
Perimeter 55166826
Area 1.4642462553711E+14
Altitude 15925290.920719

Triangular Pyramid

Length = n
Surface area 1.4642462553711E+14
Volume 7.3283125034693E+20
Height 8668630.3913641