18406945 (number)

18406945 is an odd 8-digits composite number following 18406944 and preceding 18406946. In scientific notation, it is written as 1.8406945 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 14327424 positive integers (up to 18406945) that are relatively prime to 18406945.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8406945 × 10^7
Engineering notation 1.8406945 × 10^6

Prime Factorization of 18406945

Prime Factorization 5 × 37 × 99497

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18406945
Product of the distinct prime numbers

The prime factorization of 18406945 is 5 × 37 × 99497. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18406945)

Multiplication

n×y
n×2 36813890
n×3 55220835
n×4 73627780
n×5 92034725

Division

n÷y
n÷2 9203472.5
n÷3 6135648.3333333
n÷3 4601736.25
n÷5 3681389

Exponentiation

ny
n2 338815624233025
n3 6.236560560398E+21
n4 1.1479602722441E+29
n5 2.1130441593383E+36

Nth Root

y√n
2√n 4290.331572268
3√n 264.03443555249
4√n 65.500622686109
5√n 28.378951312291

Divisors of 18406945

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 -18406944
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 18406945 can be divided by 8 positive divisors. The sum of these divisors (counting 18406945) is 1, the average is 0.125.

Base conversion 18406945

Base System Value
2 Binary 1000110001101111000100001
3 Ternary 1021122011120201
4 Quaternary 1012031320201
5 Quinary 14203010240
6 Senary 1454305201
8 Octal 106157041
10 Decimal 18406945
12 Duodecimal 61b8201
16 Hexadecimal 118de21
20 Vigesimal 5f0h75
36 Base36 ayiw1

Cryptographic Hash Functions

md5 4be9b787f4018fbd41aea91df3bcf484
sha1 3f18dd0223f00779b45ec48a533dc7b74cc71e40
sha256 aeeec1416e0c4b356efc803c7936762a99b89dca0423d8de2c874da4b9838641
sha512 eaf9553524f5dce4af95b133a9768bb4fb822ea9fc380ceaa1fb861d1d2bcfdef749477b05fdbf5d9b1ef087f6a75d7d921a726227b388f0919523024ff235ba
ripemd-160 80d3dfc4d0d6697be12699be564a620dca1f3207

18406945 as geometric shapes

Circle

Radius = n
Diameter 36813890
Circumference 115654246.37406
Area 1.0644206760119E+15

Sphere

Radius = n
Volume 2.6123643786952E+22
Surface area 4.2576827040476E+15
Circumference 115654246.37406

Square

Length = n
Perimeter 73627780
Area 338815624233025
Diagonal 26031351.260856

Cube

Length = n
Surface area 2032893745398150
Volume 6.236560560398E+21
Space diagonal 31881763.952126

Equilateral Triangle

Length = n
Perimeter 55220835
Area 1.4671146889244E+14
Altitude 15940881.976063

Triangular Pyramid

Length = n
Surface area 1.4671146889244E+14
Volume 7.3498571058966E+20
Height 8677117.0869519