18421749 (number)

18421749 is an odd 8-digits composite number following 18421748 and preceding 18421750. In scientific notation, it is written as 1.8421749 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 12229704 positive integers (up to 18421749) that are relatively prime to 18421749.

Interesting facts

Basic properties

Name

Name eighteen million four hundred twenty-one thousand seven hundred forty-nine

Notation

Scientific notation 1.8421749 × 10^7
Engineering notation 1.8421749 × 10^6

Prime Factorization of 18421749

Prime Factorization 9 × 9 × 467 × 487

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 2046861
Product of the distinct prime numbers

The prime factorization of 18421749 is 9 × 9 × 467 × 487. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 7, 35, 91, 53, 700, 6302, 7218, 22798, 11329, 511965, 134755, 1789259, 1620723, 7946340, 49875468, 937594655, 438249438, 481217613, 4739969411

Basic calculations (n = 18421749)

Multiplication

n×y
n×2 36843498
n×3 55265247
n×4 73686996
n×5 92108745

Division

n÷y
n÷2 9210874.5
n÷3 6140583
n÷3 4605437.25
n÷5 3684349.8

Exponentiation

ny
n2 339360836219001
n3 6.2516201452565E+21
n4 1.1516577715926E+29
n5 2.1215550402178E+36

Nth Root

y√n
2√n 4292.0565000941
3√n 264.10520084175
4√n 65.513788625709
5√n 28.38351466493

Divisors of 18421749

1, 9, 81, 467, 487, 4203, 4383, 37827, 39447, 227429, 2046861, 18421749

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18421748
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18421749 can be divided by 12 positive divisors. The sum of these divisors (counting 18421749) is 1, the average is 0.083333333333333.

Base conversion 18421749

Base System Value
2 Binary 1000110010001011111110101
3 Ternary 1021122220220000
4 Quaternary 1012101133311
5 Quinary 14203443444
6 Senary 1454501513
8 Octal 106213765
10 Decimal 18421749
12 Duodecimal 6204899
16 Hexadecimal 11917f5
20 Vigesimal 5f2e79
36 Base36 ayub9

Cryptographic Hash Functions

md5 c88e7e25049cc57032de20524589c0e1
sha1 dca69e6f08ed103048c0f94150abe130f9cfe9c8
sha256 aea0f20197845634cdee1c6b4608258da470d11c19c72b8090fafd9434d6918b
sha512 a284101b7b3f0f53cca577be64ab3c8e1f276eea709fd73f74f4ea385e4b2f2b93ba16d023b57a9707512378fbee9dcf93cb389387a2e03a4293e2e4926b0391
ripemd-160 330763ad26764b559d2a41ab3bf088ecaf5b5e2d

18421749 as geometric shapes

Circle

Radius = n
Diameter 36843498
Circumference 115747262.64935
Area 1.0661335099817E+15

Sphere

Radius = n
Volume 2.6186725228496E+22
Surface area 4.2645340399268E+15
Circumference 115747262.64935

Square

Length = n
Perimeter 73686996
Area 339360836219001
Diagonal 26052287.278433

Cube

Length = n
Surface area 2036165017314006
Volume 6.2516201452565E+21
Space diagonal 31907405.232281

Equilateral Triangle

Length = n
Perimeter 55265247
Area 1.4694755260759E+14
Altitude 15953702.616141

Triangular Pyramid

Length = n
Surface area 1.4694755260759E+14
Volume 7.3676049968556E+20
Height 8684095.7594777