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.
221664 has 24 divisors, whose sum is 582120
The reverse of 221664 is 466122
Previous prime number is 3
Is Prime? no
Number parity even
Number length 6
Sum of Digits 21
Digital Root 3
Name
two hundred twenty-one thousand six hundred sixty-four
Scientific notation
2.21664 × 10^5
Engineering notation
2.21664 × 10^3
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.
1 , 1 , 91 , 58 , 782 , 775 , 8409 , 4289 , 59076 , 71609 , 770530 , 343713 , 6546794 , 9859196 , 31814372 , 51657028 , 950502866 , 872892607 , 4400698230 , 3266549876
n×2
443328
n×3
664992
n×4
886656
n×5
1108320
n÷2
110832
n÷3
73888
n÷3
55416
n÷5
44332.8
n2
49134928896
n3
10891444878802944
n4
2.414241237615E+21
n5
5.3515036969469E+26
2 √n
470.81206441637
3 √n
60.519926045853
4 √n
21.698204174917
5 √n
11.725706872689
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 96 , 2309 , 4618 , 6927 , 9236 , 13854 , 18472 , 27708 , 36944 , 55416 , 73888 , 110832 , 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
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
md5
afeafafd607ccfb653c1dd601755d846
sha1
848d400be4ac5b82de5ed68fc24dada8343ac14a
sha256
8c08414b89212097e46a696675d83de05799f227b93ffbec468c798576f076fe
sha512
30185e7f030a6b4f9c48ffe8316f191d393a472d269d72db76b672dd79f793c289b70e2b647f7ff04d8bb72a7e47168fcacf5aa306553001ef209e83d5d04be2
ripemd-160
eeb3d80813c29118d949c201ef2d463a0806ba89
Diameter
443328
Circumference
1392755.9879307
Area
154361931654.33
Volume
4.5621977624301E+16
Surface area
617447726617.32
Circumference
1392755.9879307
Perimeter
886656
Area
49134928896
Diagonal
313480.23508987
Surface area
294809573376
Volume
10891444878802944
Space diagonal
383933.31020895
Perimeter
664992
Area
21276048318.539
Altitude
191966.65510447
Surface area
21276048318.539
Volume
1.2835690884535E+15
Height
104493.41169662