18385985 (number)

18385985 is an odd 8-digits composite number following 18385984 and preceding 18385986. In scientific notation, it is written as 1.8385985 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 14625904 positive integers (up to 18385985) that are relatively prime to 18385985.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-five thousand nine hundred eighty-five

Notation

Scientific notation 1.8385985 × 10^7
Engineering notation 1.8385985 × 10^6

Prime Factorization of 18385985

Prime Factorization 5 × 179 × 20543

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18385985
Product of the distinct prime numbers

The prime factorization of 18385985 is 5 × 179 × 20543. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18385985)

Multiplication

n×y
n×2 36771970
n×3 55157955
n×4 73543940
n×5 91929925

Division

n÷y
n÷2 9192992.5
n÷3 6128661.6666667
n÷3 4596496.25
n÷5 3677197

Exponentiation

ny
n2 338044444420225
n3 6.2152800844436E+21
n4 1.1427404640338E+29
n5 2.1010409030618E+36

Nth Root

y√n
2√n 4287.8881748478
3√n 263.93417876203
4√n 65.481968318369
5√n 28.372485340509

Divisors of 18385985

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18385984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18385985 can be divided by 8 positive divisors. The sum of these divisors (counting 18385985) is 1, the average is 0.125.

Base conversion 18385985

Base System Value
2 Binary 1000110001000110001000001
3 Ternary 1021121002211102
4 Quaternary 1012020301001
5 Quinary 14201322420
6 Senary 1454024145
8 Octal 106106101
10 Decimal 18385985
12 Duodecimal 61a8055
16 Hexadecimal 1188c41
20 Vigesimal 5ei4j5
36 Base36 ay2pt

Cryptographic Hash Functions

md5 153dcdb1b0ebdc797bef16d1f37af306
sha1 fab785170715fec36a046a07ab43db37223db0e4
sha256 74199d380c931c0adb30d820c6802b0b2a62e012d3f523c50957ee7ad1f64f14
sha512 be0f767f597a4cec5c9cc6dba409bd9cdb03066dd5ddf613e03121b1951ba020342319eda686fbd44fc5287f18357a7822300e9d1153ac444807213d309f7188
ripemd-160 1f533d742ec5474cbd2b73c30e26cc110fb4b947

18385985 as geometric shapes

Circle

Radius = n
Diameter 36771970
Circumference 115522550.81002
Area 1.0619979431774E+15

Sphere

Radius = n
Volume 2.6034504337721E+22
Surface area 4.2479917727097E+15
Circumference 115522550.81002

Square

Length = n
Perimeter 73543940
Area 338044444420225
Diagonal 26001709.344588

Cube

Length = n
Surface area 2028266666521350
Volume 6.2152800844436E+21
Space diagonal 31845460.167199

Equilateral Triangle

Length = n
Perimeter 55157955
Area 1.4637753823806E+14
Altitude 15922730.0836

Triangular Pyramid

Length = n
Surface area 1.4637753823806E+14
Volume 7.3247778244729E+20
Height 8667236.4481961