18981916 (number)

18981916 is an even 8-digits composite number following 18981915 and preceding 18981917. In scientific notation, it is written as 1.8981916 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 9481968 positive integers (up to 18981916) that are relatively prime to 18981916.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-one thousand nine hundred sixteen

Notation

Scientific notation 1.8981916 × 10^7
Engineering notation 1.8981916 × 10^6

Prime Factorization of 18981916

Prime Factorization 2 × 2 × 1693 × 2803

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9490958
Product of the distinct prime numbers

The prime factorization of 18981916 is 2 × 2 × 1693 × 2803. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 45, 57, 651, 661, 8963, 4732, 77165, 26054, 298625, 153248, 160075, 8807652, 90055818, 1414544, 50239360, 828812656, 6296766169, 708875936

Basic calculations (n = 18981916)

Multiplication

n×y
n×2 37963832
n×3 56945748
n×4 75927664
n×5 94909580

Division

n÷y
n÷2 9490958
n÷3 6327305.3333333
n÷3 4745479
n÷5 3796383.2

Exponentiation

ny
n2 360313135031056
n3 6.8394336628562E+21
n4 1.2982555527591E+29
n5 2.4643377849006E+36

Nth Root

y√n
2√n 4356.8240726474
3√n 266.75547944558
4√n 66.006242679366
5√n 28.554069315391

Divisors of 18981916

1, 2, 4, 1693, 2803, 3386, 5606, 6772, 11212, 4745479, 9490958, 18981916

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 -18981915
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 18981916 can be divided by 12 positive divisors. The sum of these divisors (counting 18981916) is 1, the average is 0.083333333333333.

Base conversion 18981916

Base System Value
2 Binary 1001000011010010000011100
3 Ternary 1022201101021221
4 Quaternary 1020122100130
5 Quinary 14324410131
6 Senary 1514503124
8 Octal 110322034
10 Decimal 18981916
12 Duodecimal 6434aa4
16 Hexadecimal 121a41c
20 Vigesimal 5icefg
36 Base36 baujg

Cryptographic Hash Functions

md5 1bfe73e223a142a62f221871b6c6f0a8
sha1 0b96a67ec4158086979ca63022af14c3c2640162
sha256 db0ee1decdcc582033c0c7ad66a8d8af7bada54236c1fe73a4ecfcc9635d656d
sha512 550b1415811131241f8b16d57d20c8c03d8f89d4402d8340130dcaa9d0200e77f87568882c839198f7261925457e247bcca3f633a795e5b70c135e8841b0cf11
ripemd-160 6df70b2345501a1de2c690420d241b81e801810e

18981916 as geometric shapes

Circle

Radius = n
Diameter 37963832
Circumference 119266895.71332
Area 1.1319570980055E+15

Sphere

Radius = n
Volume 2.8648952733258E+22
Surface area 4.5278283920219E+15
Circumference 119266895.71332

Square

Length = n
Perimeter 75927664
Area 360313135031056
Diagonal 26844483.047027

Cube

Length = n
Surface area 2161878810186336
Volume 6.8394336628562E+21
Space diagonal 32877642.937005

Equilateral Triangle

Length = n
Perimeter 56945748
Area 1.5602016412705E+14
Altitude 16438821.468502

Triangular Pyramid

Length = n
Surface area 1.5602016412705E+14
Volume 8.0603498708019E+20
Height 8948161.0156756