18445021 (number)

18445021 is an odd 8-digits composite number following 18445020 and preceding 18445022. In scientific notation, it is written as 1.8445021 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 15748992 positive integers (up to 18445021) that are relatively prime to 18445021.

Interesting facts

Basic properties

Name

Name eighteen million four hundred forty-five thousand twenty-one

Notation

Scientific notation 1.8445021 × 10^7
Engineering notation 1.8445021 × 10^6

Prime Factorization of 18445021

Prime Factorization 49 × 337 × 1117

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 18445021
Product of the distinct prime numbers

The prime factorization of 18445021 is 49 × 337 × 1117. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18445021)

Multiplication

n×y
n×2 36890042
n×3 55335063
n×4 73780084
n×5 92225105

Division

n÷y
n÷2 9222510.5
n÷3 6148340.3333333
n÷3 4611255.25
n÷5 3689004.2

Exponentiation

ny
n2 340218799690441
n3 6.275342904885E+21
n4 1.157488316628E+29
n5 2.1349896307459E+36

Nth Root

y√n
2√n 4294.7666991351
3√n 264.21636780862
4√n 65.534469549506
5√n 28.390682362462

Divisors of 18445021

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 -18445020
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 18445021 can be divided by 8 positive divisors. The sum of these divisors (counting 18445021) is 1, the average is 0.125.

Base conversion 18445021

Base System Value
2 Binary 1000110010111001011011101
3 Ternary 1021201002210221
4 Quaternary 1012113023131
5 Quinary 14210220041
6 Senary 1455201341
8 Octal 106271335
10 Decimal 18445021
12 Duodecimal 6216251
16 Hexadecimal 11972dd
20 Vigesimal 5f5cb1
36 Base36 azc9p

Cryptographic Hash Functions

md5 8e63fe0b7f33f137ec7223541cd61c9b
sha1 5709a745c8f156e7136b3f9c21a2e99e09ddfe77
sha256 60ece8eee4fcb50abbec01131e286729aab06221377cba036a310088a7dbb577
sha512 f73537c6c1650e266c0415e0c050ba3678e77a0dab5d3d9e6a3917ca9b16e867d7fc175e78b528d24c0313a3a602baf8985887cfbae72751508de7e56e071524
ripemd-160 5fc6d5af4c35ff6cef1e0abf5cbdd8b6120be4a6

18445021 as geometric shapes

Circle

Radius = n
Diameter 36890042
Circumference 115893484.93782
Area 1.0688288817206E+15

Sphere

Radius = n
Volume 2.6286094891658E+22
Surface area 4.2753155268825E+15
Circumference 115893484.93782

Square

Length = n
Perimeter 73780084
Area 340218799690441
Diagonal 26085198.856457

Cube

Length = n
Surface area 2041312798142646
Volume 6.275342904885E+21
Space diagonal 31947713.518675

Equilateral Triangle

Length = n
Perimeter 55335063
Area 1.4731906168849E+14
Altitude 15973856.759337

Triangular Pyramid

Length = n
Surface area 1.4731906168849E+14
Volume 7.3955625371918E+20
Height 8695066.2854855