18386945 (number)

18386945 is an odd 8-digits composite number following 18386944 and preceding 18386946. In scientific notation, it is written as 1.8386945 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 13844224 positive integers (up to 18386945) that are relatively prime to 18386945.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8386945 × 10^7
Engineering notation 1.8386945 × 10^6

Prime Factorization of 18386945

Prime Factorization 5 × 17 × 216317

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18386945
Product of the distinct prime numbers

The prime factorization of 18386945 is 5 × 17 × 216317. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18386945)

Multiplication

n×y
n×2 36773890
n×3 55160835
n×4 73547780
n×5 91934725

Division

n÷y
n÷2 9193472.5
n÷3 6128981.6666667
n÷3 4596736.25
n÷5 3677389

Exponentiation

ny
n2 338079746433025
n3 6.216253703278E+21
n4 1.1429791494822E+29
n5 2.1015894757676E+36

Nth Root

y√n
2√n 4288.0001166045
3√n 263.93877234064
4√n 65.482823065324
5√n 28.372781620715

Divisors of 18386945

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 -18386944
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 18386945 can be divided by 8 positive divisors. The sum of these divisors (counting 18386945) is 1, the average is 0.125.

Base conversion 18386945

Base System Value
2 Binary 1000110001001000000000001
3 Ternary 1021121011010222
4 Quaternary 1012021000001
5 Quinary 14201340240
6 Senary 1454032425
8 Octal 106110001
10 Decimal 18386945
12 Duodecimal 61a8715
16 Hexadecimal 1189001
20 Vigesimal 5ei775
36 Base36 ay3gh

Cryptographic Hash Functions

md5 292e25ca0b834fe9e005afbfe096c230
sha1 93bb1ed179568b163a429d1dcfc51f0047c6f950
sha256 94165a3496989a0f65e838213a2b5b0c24c765d7f73fb56b5e817b8c873349fd
sha512 75a79cece732c174b8e2cfee88119c4e0afba6f4fbe091bf217ad5e033dc83afd73279e0571fdb82148027fe0761a9a152d594f2244bc63e7fb1e4cfdf4f3887
ripemd-160 71077a69c3b13a7c71bb0e412cacbb7665e03def

18386945 as geometric shapes

Circle

Radius = n
Diameter 36773890
Circumference 115528582.66792
Area 1.0621088477215E+15

Sphere

Radius = n
Volume 2.6038582622758E+22
Surface area 4.248435390886E+15
Circumference 115528582.66792

Square

Length = n
Perimeter 73547780
Area 338079746433025
Diagonal 26003066.989608

Cube

Length = n
Surface area 2028478478598150
Volume 6.216253703278E+21
Space diagonal 31847122.935975

Equilateral Triangle

Length = n
Perimeter 55160835
Area 1.46392824458E+14
Altitude 15923561.467987

Triangular Pyramid

Length = n
Surface area 1.46392824458E+14
Volume 7.3259252452731E+20
Height 8667688.9965361