18245721 (number)

18245721 is an odd 8-digits composite number following 18245720 and preceding 18245722. In scientific notation, it is written as 1.8245721 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 11194944 positive integers (up to 18245721) that are relatively prime to 18245721.

Interesting facts

Basic properties

Name

Name eighteen million two hundred forty-five thousand seven hundred twenty-one

Notation

Scientific notation 1.8245721 × 10^7
Engineering notation 1.8245721 × 10^6

Prime Factorization of 18245721

Prime Factorization 3 × 13 × 797 × 587

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18245721
Product of the distinct prime numbers

The prime factorization of 18245721 is 3 × 13 × 797 × 587. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 89, 3, 326, 802, 9263, 1382, 40611, 91420, 552989, 698278, 4754084, 2464006, 77292112, 59660734, 568022313, 598114414, 3906981556, 9067794388

Basic calculations (n = 18245721)

Multiplication

n×y
n×2 36491442
n×3 54737163
n×4 72982884
n×5 91228605

Division

n÷y
n÷2 9122860.5
n÷3 6081907
n÷3 4561430.25
n÷5 3649144.2

Exponentiation

ny
n2 332906334809841
n3 6.0741161040729E+21
n4 1.1082662775652E+29
n5 2.0221117294164E+36

Nth Root

y√n
2√n 4271.5010242302
3√n 263.26129293939
4√n 65.356721339356
5√n 28.329062720491

Divisors of 18245721

1, 3, 13, 39, 587, 797, 1761, 2391, 7631, 10361, 22893, 31083, 467839, 1403517, 6081907, 18245721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18245720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18245721 can be divided by 16 positive divisors. The sum of these divisors (counting 18245721) is 1, the average is 0.0625.

Base conversion 18245721

Base System Value
2 Binary 1000101100110100001011001
3 Ternary 1021022222102110
4 Quaternary 1011212201121
5 Quinary 14132330341
6 Senary 1451022533
8 Octal 105464131
10 Decimal 18245721
12 Duodecimal 613aa49
16 Hexadecimal 1166859
20 Vigesimal 5e0e61
36 Base36 av2hl

Cryptographic Hash Functions

md5 978e55663534c0068c0e2f4a4cc744b2
sha1 d7a09d71b753e21ebcbd935f7a47e8072562347c
sha256 f053e96d4788add1540f9a1484307842bc13dbd376b07ea441eec9da1f8bceae
sha512 be8d7a03eba714e835be578c6444779841c097d24c2e79e7702a743bf594f4550f26c8f3d858a7787186b593a726d22bd518bc6dcd4f56408223161b57669ad9
ripemd-160 1998c9e5e178525820bbf14febd480f0f29acaf5

18245721 as geometric shapes

Circle

Radius = n
Diameter 36491442
Circumference 114641246.1061
Area 1.0458560957721E+15

Sphere

Radius = n
Volume 2.5443198039476E+22
Surface area 4.1834243830884E+15
Circumference 114641246.1061

Square

Length = n
Perimeter 72982884
Area 332906334809841
Diagonal 25803346.093476

Cube

Length = n
Surface area 1997438008859046
Volume 6.0741161040729E+21
Space diagonal 31602515.792726

Equilateral Triangle

Length = n
Perimeter 54737163
Area 1.4415267151305E+14
Altitude 15801257.896363

Triangular Pyramid

Length = n
Surface area 1.4415267151305E+14
Volume 7.158414478174E+20
Height 8601115.3644919