221664 (number)

221664 is an even 6-digits composite number following 221663 and preceding 221665. In scientific notation, it is written as 2.21664 × 10^5. The sum of its digits is 21. It has a total of 7 prime factors and 24 positive divisors. There are 73856 positive integers (up to 221664) that are relatively prime to 221664.

Interesting facts

Basic properties

Name

Name two hundred twenty-one thousand six hundred sixty-four

Notation

Scientific notation 2.21664 × 10^5
Engineering notation 2.21664 × 10^3

Prime Factorization of 221664

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 2309

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 13854
Product of the distinct prime numbers

The prime factorization of 221664 is 2 × 2 × 2 × 2 × 2 × 3 × 2309. Since it has a total of 7 prime factors.

Most popular turbo-numbers

Basic calculations (n = 221664)

Multiplication

n×y
n×2 443328
n×3 664992
n×4 886656
n×5 1108320

Division

n÷y
n÷2 110832
n÷3 73888
n÷3 55416
n÷5 44332.8

Exponentiation

ny
n2 49134928896
n3 10891444878802944
n4 2.414241237615E+21
n5 5.3515036969469E+26

Nth Root

y√n
2√n 470.81206441637
3√n 60.519926045853
4√n 21.698204174917
5√n 11.725706872689

Divisors of 221664

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -221663
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221664 can be divided by 24 positive divisors. The sum of these divisors (counting 221664) is 1, the average is 0.041666666666667.

Base conversion 221664

Base System Value
2 Binary 110110000111100000
3 Ternary 102021001210
4 Quaternary 312013200
5 Quinary 24043124
6 Senary 4430120
8 Octal 660740
10 Decimal 221664
12 Duodecimal a8340
16 Hexadecimal 361e0
20 Vigesimal 17e34
36 Base36 4r1c

Cryptographic Hash Functions

md5 afeafafd607ccfb653c1dd601755d846
sha1 848d400be4ac5b82de5ed68fc24dada8343ac14a
sha256 8c08414b89212097e46a696675d83de05799f227b93ffbec468c798576f076fe
sha512 30185e7f030a6b4f9c48ffe8316f191d393a472d269d72db76b672dd79f793c289b70e2b647f7ff04d8bb72a7e47168fcacf5aa306553001ef209e83d5d04be2
ripemd-160 eeb3d80813c29118d949c201ef2d463a0806ba89

221664 as geometric shapes

Circle

Radius = n
Diameter 443328
Circumference 1392755.9879307
Area 154361931654.33

Sphere

Radius = n
Volume 4.5621977624301E+16
Surface area 617447726617.32
Circumference 1392755.9879307

Square

Length = n
Perimeter 886656
Area 49134928896
Diagonal 313480.23508987

Cube

Length = n
Surface area 294809573376
Volume 10891444878802944
Space diagonal 383933.31020895

Equilateral Triangle

Length = n
Perimeter 664992
Area 21276048318.539
Altitude 191966.65510447

Triangular Pyramid

Length = n
Surface area 21276048318.539
Volume 1.2835690884535E+15
Height 104493.41169662