# 218740 (number)

218,740 (two hundred eighteen thousand seven hundred forty) is an even six-digits composite number following 218739 and preceding 218741. In scientific notation, it is written as 2.1874 × 105. The sum of its digits is 22. It has a total of 4 prime factors and 12 positive divisors. There are 87,488 positive integers (up to 218740) that are relatively prime to 218740.

## Basic properties

• Is Prime? No
• Number parity Even
• Number length 6
• Sum of Digits 22
• Digital Root 4

## Name

Short name 218 thousand 740 two hundred eighteen thousand seven hundred forty

## Notation

Scientific notation 2.1874 × 105 218.74 × 103

## Prime Factorization of 218740

Prime Factorization 22 × 5 × 10937

Composite number
Distinct Factors Total Factors Radical ω(n) 3 Total number of distinct prime factors Ω(n) 4 Total number of prime factors rad(n) 109370 Product of the distinct prime numbers λ(n) 1 Returns the parity of Ω(n), such that λ(n) = (-1)Ω(n) μ(n) 0 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 218,740 is 22 × 5 × 10937. Since it has a total of 4 prime factors, 218,740 is a composite number.

## Divisors of 218740

12 divisors

 Even divisors 8 4 4 0
Total Divisors Sum of Divisors Aliquot Sum τ(n) 12 Total number of the positive divisors of n σ(n) 459396 Sum of all the positive divisors of n s(n) 240656 Sum of the proper positive divisors of n A(n) 38283 Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n)) G(n) 467.696 Returns the nth root of the product of n divisors H(n) 5.71376 Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 218,740 can be divided by 12 positive divisors (out of which 8 are even, and 4 are odd). The sum of these divisors (counting 218,740) is 459,396, the average is 38,283.

## Other Arithmetic Functions (n = 218740)

1 φ(n) n
Euler Totient Carmichael Lambda Prime Pi φ(n) 87488 Total number of positive integers not greater than n that are coprime to n λ(n) 10936 Smallest positive number such that aλ(n) ≡ 1 (mod n) for all a coprime to n π(n) ≈ 19460 Total number of primes less than or equal to n r2(n) 16 The number of ways n can be represented as the sum of 2 squares

There are 87,488 positive integers (less than 218,740) that are coprime with 218,740. And there are approximately 19,460 prime numbers less than or equal to 218,740.

## Divisibility of 218740

 m n mod m 2 3 4 5 6 7 8 9 0 1 0 0 4 4 4 4

The number 218,740 is divisible by 2, 4 and 5.

• Arithmetic
• Abundant

• Polite

## Base conversion (218740)

Base System Value
2 Binary 110101011001110100
3 Ternary 102010001111
4 Quaternary 311121310
5 Quinary 23444430
6 Senary 4404404
8 Octal 653164
10 Decimal 218740
12 Duodecimal a6704
20 Vigesimal 176h0
36 Base36 4os4

## Basic calculations (n = 218740)

### Multiplication

n×y
 n×2 437480 656220 874960 1093700

### Division

n÷y
 n÷2 109370 72913.3 54685 43748

### Exponentiation

ny
 n2 47847187600 10466093815624000 2289353361229593760000 500773154235361339062400000

### Nth Root

y√n
 2√n 467.696 60.2526 21.6263 11.6946

## 218740 as geometric shapes

### Circle

 Diameter 437480 1.37438e+06 1.50316e+11

### Sphere

 Volume 4.38403e+16 6.01265e+11 1.37438e+06

### Square

Length = n
 Perimeter 874960 4.78472e+10 309345

### Cube

Length = n
 Surface area 2.87083e+11 1.04661e+16 378869

### Equilateral Triangle

Length = n
 Perimeter 656220 2.07184e+10 189434

### Triangular Pyramid

Length = n
 Surface area 8.28738e+10 1.23344e+15 178600
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