18406985 (number)

18406985 is an odd 8-digits composite number following 18406984 and preceding 18406986. In scientific notation, it is written as 1.8406985 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 14695344 positive integers (up to 18406985) that are relatively prime to 18406985.

Interesting facts

Basic properties

Name

Name eighteen million four hundred six thousand nine hundred eighty-five

Notation

Scientific notation 1.8406985 × 10^7
Engineering notation 1.8406985 × 10^6

Prime Factorization of 18406985

Prime Factorization 5 × 523 × 7039

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18406985
Product of the distinct prime numbers

The prime factorization of 18406985 is 5 × 523 × 7039. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18406985)

Multiplication

n×y
n×2 36813970
n×3 55220955
n×4 73627940
n×5 92034925

Division

n÷y
n÷2 9203492.5
n÷3 6135661.6666667
n÷3 4601746.25
n÷5 3681397

Exponentiation

ny
n2 338817096790225
n3 6.2366012183612E+21
n4 1.1479702507736E+29
n5 2.1130671186435E+36

Nth Root

y√n
2√n 4290.3362339099
3√n 264.03462680947
4√n 65.500658270813
5√n 28.3789636463

Divisors of 18406985

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 -18406984
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 18406985 can be divided by 8 positive divisors. The sum of these divisors (counting 18406985) is 1, the average is 0.125.

Base conversion 18406985

Base System Value
2 Binary 1000110001101111001001001
3 Ternary 1021122011122012
4 Quaternary 1012031321021
5 Quinary 14203010420
6 Senary 1454305305
8 Octal 106157111
10 Decimal 18406985
12 Duodecimal 61b8235
16 Hexadecimal 118de49
20 Vigesimal 5f0h95
36 Base36 ayix5

Cryptographic Hash Functions

md5 516e56d643e48108df511dd74d31e4f0
sha1 5a6061c88533ee8982bad3ad6ea06fd4661d5aa5
sha256 11987cda9cf80ad020ae997f2eb97ee5213a78b897ae8c808bde71897b7ef432
sha512 b798a3ebbc5a7c57c8a84b86c0e2d46d3cf932898359ab6813ed5610e762bde9515138779b6307b180bd803e40450162e18c3d7b4484c99a3adbd79c3772e957
ripemd-160 c81e9979e572502ac4f8d4b09d76cf36fa103d37

18406985 as geometric shapes

Circle

Radius = n
Diameter 36813970
Circumference 115654497.70148
Area 1.0644253021868E+15

Sphere

Radius = n
Volume 2.612381409463E+22
Surface area 4.2577012087472E+15
Circumference 115654497.70148

Square

Length = n
Perimeter 73627940
Area 338817096790225
Diagonal 26031407.829398

Cube

Length = n
Surface area 2032902580741350
Volume 6.2366012183612E+21
Space diagonal 31881833.234158

Equilateral Triangle

Length = n
Perimeter 55220955
Area 1.4671210652841E+14
Altitude 15940916.617079

Triangular Pyramid

Length = n
Surface area 1.4671210652841E+14
Volume 7.3499050217658E+20
Height 8677135.9431327