# 18841 (number)

18,841 (eighteen thousand eight hundred forty-one) is an odd five-digits composite number following 18840 and preceding 18842. In scientific notation, it is written as 1.8841 × 104. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 18,532 positive integers (up to 18841) that are relatively prime to 18841.

## Basic properties

• Is Prime? No
• Number parity Odd
• Number length 5
• Sum of Digits 22
• Digital Root 4

## Name

Short name 18 thousand 841 eighteen thousand eight hundred forty-one

## Notation

Scientific notation 1.8841 × 104 18.841 × 103

## Prime Factorization of 18841

Prime Factorization 83 × 227

Composite number
Distinct Factors Total Factors Radical ω(n) 2 Total number of distinct prime factors Ω(n) 2 Total number of prime factors rad(n) 18841 Product of the distinct prime numbers λ(n) 1 Returns the parity of Ω(n), such that λ(n) = (-1)Ω(n) μ(n) 1 Returns: 1, if n has an even number of prime factors (and is square free) −1, if n has an odd number of prime factors (and is square free) 0, if n has a squared prime factor Λ(n) 0 Returns log(p) if n is a power pk of any prime p (for any k >= 1), else returns 0

The prime factorization of 18,841 is 83 × 227. Since it has a total of 2 prime factors, 18,841 is a composite number.

## Divisors of 18841

1, 83, 227, 18841

4 divisors

 Even divisors 0 4 2 2
Total Divisors Sum of Divisors Aliquot Sum τ(n) 4 Total number of the positive divisors of n σ(n) 19152 Sum of all the positive divisors of n s(n) 311 Sum of the proper positive divisors of n A(n) 4788 Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) G(n) 137.263 Returns the nth root of the product of n divisors H(n) 3.93505 Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18,841 can be divided by 4 positive divisors (out of which 0 are even, and 4 are odd). The sum of these divisors (counting 18,841) is 19,152, the average is 4,788.

## Other Arithmetic Functions (n = 18841)

1 φ(n) n
Euler Totient Carmichael Lambda Prime Pi φ(n) 18532 Total number of positive integers not greater than n that are coprime to n λ(n) 9266 Smallest positive number such that aλ(n) ≡ 1 (mod n) for all a coprime to n π(n) ≈ 2149 Total number of primes less than or equal to n r2(n) 0 The number of ways n can be represented as the sum of 2 squares

There are 18,532 positive integers (less than 18,841) that are coprime with 18,841. And there are approximately 2,149 prime numbers less than or equal to 18,841.

## Divisibility of 18841

 m n mod m 2 3 4 5 6 7 8 9 1 1 1 1 1 4 1 4

18,841 is not divisible by any number less than or equal to 9.

## Classification of 18841

• Arithmetic
• Semiprime
• Deficient

### Expressible via specific sums

• Polite
• Non-hypotenuse

• Square Free

### Other numbers

• LucasCarmichael

## Base conversion (18841)

Base System Value
2 Binary 100100110011001
3 Ternary 221211211
4 Quaternary 10212121
5 Quinary 1100331
6 Senary 223121
8 Octal 44631
10 Decimal 18841
12 Duodecimal aaa1
20 Vigesimal 2721
36 Base36 ejd

## Basic calculations (n = 18841)

### Multiplication

n×y
 n×2 37682 56523 75364 94205

### Division

n÷y
 n÷2 9420.5 6280.33 4710.25 3768.2

### Exponentiation

ny
 n2 354983281 6688239997321 126013129789524961 2374213378364439790201

### Nth Root

y√n
 2√n 137.263 26.6094 11.7159 7.16178

## 18841 as geometric shapes

### Circle

 Diameter 37682 118381 1.11521e+09

### Sphere

 Volume 2.80156e+13 4.46085e+09 118381

### Square

Length = n
 Perimeter 75364 3.54983e+08 26645.2

### Cube

Length = n
 Surface area 2.1299e+09 6.68824e+12 32633.6

### Equilateral Triangle

Length = n
 Perimeter 56523 1.53712e+08 16316.8

### Triangular Pyramid

Length = n
 Surface area 6.14849e+08 7.88217e+11 15383.6
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