18281385 (number)

18281385 is an odd 8-digits composite number following 18281384 and preceding 18281386. In scientific notation, it is written as 1.8281385 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 9750048 positive integers (up to 18281385) that are relatively prime to 18281385.

Interesting facts

Basic properties

Name

Name eighteen million two hundred eighty-one thousand three hundred eighty-five

Notation

Scientific notation 1.8281385 × 10^7
Engineering notation 1.8281385 × 10^6

Prime Factorization of 18281385

Prime Factorization 3 × 3 × 5 × 406253

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 6093795
Product of the distinct prime numbers

The prime factorization of 18281385 is 3 × 3 × 5 × 406253. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 10, 74, 65, 937, 735, 9836, 10, 51870, 74934, 164509, 186040, 7652016, 2791265, 12794717, 78158208, 678069121, 187509482, 7028589401, 4553770913

Basic calculations (n = 18281385)

Multiplication

n×y
n×2 36562770
n×3 54844155
n×4 73125540
n×5 91406925

Division

n÷y
n÷2 9140692.5
n÷3 6093795
n÷3 4570346.25
n÷5 3656277

Exponentiation

ny
n2 334209037518225
n3 6.1098040853501E+21
n4 1.1169568075886E+29
n5 2.0419517427898E+36

Nth Root

y√n
2√n 4275.673631137
3√n 263.43270920396
4√n 65.388635336249
5√n 28.340128752721

Divisors of 18281385

1, 3, 5, 9, 15, 45, 406253, 1218759, 2031265, 3656277, 6093795, 18281385

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 -18281384
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 18281385 can be divided by 12 positive divisors. The sum of these divisors (counting 18281385) is 1, the average is 0.083333333333333.

Base conversion 18281385

Base System Value
2 Binary 1000101101111001110101001
3 Ternary 1021101210100100
4 Quaternary 1011233032221
5 Quinary 14140001020
6 Senary 1451500013
8 Octal 105571651
10 Decimal 18281385
12 Duodecimal 6157609
16 Hexadecimal 116f3a9
20 Vigesimal 5e5395
36 Base36 avu09

Cryptographic Hash Functions

md5 eda882b48d7965bf35853aa06c34621f
sha1 3c8fa225c857429c3a9e51c3e33ff32dcf59da65
sha256 127d3cf4b99b5653df488a602354da19e1a0f45e510763c4e87f22e0f6b16b85
sha512 232bbdf86a22a6fe7c30f548d0cb4d4997785fd948fd8142931e6df7615a4b5c1089a933965b1698f5429d96f7a44b18258f5f2ec6a85a78bad454359ac71c20
ripemd-160 dc0f8bfd9d84612d5e0b184f51ffc0a665c0a65c

18281385 as geometric shapes

Circle

Radius = n
Diameter 36562770
Circumference 114865329.62689
Area 1.0499486570306E+15

Sphere

Radius = n
Volume 2.5592687505878E+22
Surface area 4.1997946281223E+15
Circumference 114865329.62689

Square

Length = n
Perimeter 73125540
Area 334209037518225
Diagonal 25853782.605964

Cube

Length = n
Surface area 2005254225109350
Volume 6.1098040853501E+21
Space diagonal 31664287.652728

Equilateral Triangle

Length = n
Perimeter 54844155
Area 1.4471675833256E+14
Altitude 15832143.826364

Triangular Pyramid

Length = n
Surface area 1.4471675833256E+14
Volume 7.2004731674539E+20
Height 8617927.5353214