18909968 (number)

18909968 is an even 8-digits composite number following 18909967 and preceding 18909969. In scientific notation, it is written as 1.8909968 × 10^7. The sum of its digits is 50. It has a total of 6 prime factors and 20 positive divisors. There are 7367040 positive integers (up to 18909968) that are relatively prime to 18909968.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred nine thousand nine hundred sixty-eight

Notation

Scientific notation 1.8909968 × 10^7
Engineering notation 1.8909968 × 10^6

Prime Factorization of 18909968

Prime Factorization 2 × 2 × 2 × 2 × 77 × 15349

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2363746
Product of the distinct prime numbers

The prime factorization of 18909968 is 2 × 2 × 2 × 2 × 77 × 15349. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 8, 59, 53, 322, 662, 3946, 724, 41405, 65061, 939724, 374686, 9258348, 6951170, 42525589, 38944374, 592545071, 106430281, 1049442386, 6469415261

Basic calculations (n = 18909968)

Multiplication

n×y
n×2 37819936
n×3 56729904
n×4 75639872
n×5 94549840

Division

n÷y
n÷2 9454984
n÷3 6303322.6666667
n÷3 4727492
n÷5 3781993.6

Exponentiation

ny
n2 357586889761024
n3 6.7619566426005E+21
n4 1.2786838372896E+29
n5 2.4179870445264E+36

Nth Root

y√n
2√n 4348.5593016538
3√n 266.41802100735
4√n 65.943606980918
5√n 28.532390470669

Divisors of 18909968

1, 2, 4, 8, 16, 77, 154, 308, 616, 1232, 15349, 30698, 61396, 122792, 245584, 1181873, 2363746, 4727492, 9454984, 18909968

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18909967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18909968 can be divided by 20 positive divisors. The sum of these divisors (counting 18909968) is 1, the average is 0.05.

Base conversion 18909968

Base System Value
2 Binary 1001000001000101100010000
3 Ternary 1022120201121012
4 Quaternary 1020020230100
5 Quinary 14320104333
6 Senary 1513150052
8 Octal 110105420
10 Decimal 18909968
12 Duodecimal 63bb328
16 Hexadecimal 1208b10
20 Vigesimal 5i3ei8
36 Base36 b9b0w

Cryptographic Hash Functions

md5 1faeee19fbd27b42c1d8851c0dc840c7
sha1 f90e4fbe3d76b0fb5b82744a651f0d58fb2d3e32
sha256 a7d432a06aa3c7f851a261c68ea33a6167c445c42345c3a5e55cdb841c844d12
sha512 2e45869d5c2229f75c053651a7b4b5774c7e25be629a0b25b2c997a382eafb459ad8e1413940504abd29fa5f6e6108b0699c5d9478b3569f332c3b7fb1ea0448
ripemd-160 2918b4b2ad415a0394237cc4390e0340230cc1d9

18909968 as geometric shapes

Circle

Radius = n
Diameter 37819936
Circumference 118814833.09684
Area 1.1233923458933E+15

Sphere

Radius = n
Volume 2.8324417749715E+22
Surface area 4.493569383573E+15
Circumference 118814833.09684

Square

Length = n
Perimeter 75639872
Area 357586889761024
Diagonal 26742733.209641

Cube

Length = n
Surface area 2145521338566144
Volume 6.7619566426005E+21
Space diagonal 32753025.345502

Equilateral Triangle

Length = n
Perimeter 56729904
Area 1.5483966529666E+14
Altitude 16376512.672751

Triangular Pyramid

Length = n
Surface area 1.5483966529666E+14
Volume 7.969042326787E+20
Height 8914244.4032137