18993881 (number)

18993881 is an odd 8-digits prime number following 18993880 and preceding 18993882. In scientific notation, it is written as 1.8993881 × 10^7. The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors. There are 18993880 positive integers (up to 18993881) that are relatively prime to 18993881.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-three thousand eight hundred eighty-one

Notation

Scientific notation 1.8993881 × 10^7
Engineering notation 1.8993881 × 10^6

Prime Factorization of 18993881

Prime Factorization 18993881

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 18993881
Product of the distinct prime numbers

The prime factorization of 18993881 is 18993881. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18993881)

Multiplication

n×y
n×2 37987762
n×3 56981643
n×4 75975524
n×5 94969405

Division

n÷y
n÷2 9496940.5
n÷3 6331293.6666667
n÷3 4748470.25
n÷5 3798776.2

Exponentiation

ny
n2 360767515442161
n3 6.8523752569741E+21
n4 1.3015320019831E+29
n5 2.4721143963359E+36

Nth Root

y√n
2√n 4358.1969895818
3√n 266.81151627075
4√n 66.016641762375
5√n 28.557668144195

Divisors of 18993881

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 18993882
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9496941
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4358.1971043082
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999998947029
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18993881 can be divided by 2 positive divisors. The sum of these divisors (counting 18993881) is 18993882, the average is 9496941.

Base conversion 18993881

Base System Value
2 Binary 1001000011101001011011001
3 Ternary 1022201222201002
4 Quaternary 1020131023121
5 Quinary 14330301011
6 Senary 1515034345
8 Octal 110351331
10 Decimal 18993881
12 Duodecimal 643b9b5
16 Hexadecimal 121d2d9
20 Vigesimal 5ie4e1
36 Base36 bb3rt

Cryptographic Hash Functions

md5 8e3edfe63635390f8874a997a6c3be1d
sha1 22a8aed28e0ddd43ca42ffeb414a4abe5637fe18
sha256 c1dc83c07fae0c0c1618b23578d86499e839ddc5b00e2a26b3a81679daf08e7b
sha512 8c0c8bc1f42cb61e00ba5827347a226ad4e4883997cd93642472f856e56f9d54bdd87f7917c940c3716b65c65f217e5d280a6038d34ceff38ce8db311bb738e1
ripemd-160 d5ce5ee11052c48be1d9bc8c50c87c7971084f61

18993881 as geometric shapes

Circle

Radius = n
Diameter 37987762
Circumference 119342074.02552
Area 1.1333845761669E+15

Sphere

Radius = n
Volume 2.8703162355934E+22
Surface area 4.5335383046677E+15
Circumference 119342074.02552

Square

Length = n
Perimeter 75975524
Area 360767515442161
Diagonal 26861404.112301

Cube

Length = n
Surface area 2164605092652966
Volume 6.8523752569741E+21
Space diagonal 32898366.924917

Equilateral Triangle

Length = n
Perimeter 56981643
Area 1.5621691661655E+14
Altitude 16449183.462459

Triangular Pyramid

Length = n
Surface area 1.5621691661655E+14
Volume 8.0756016857355E+20
Height 8953801.3707669