221644 is an even 6-digits composite number following 221643
and preceding 221645 . In scientific notation, it is written as 2.21644 × 10^5.
The sum of its digits is 19. It has a total of 3 prime factors and 6 positive divisors.
There are 110820 positive integers (up to 221644) that are relatively prime to 221644.
221644 has 6 divisors, whose sum is 387884
The reverse of 221644 is 446122
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 19
Digital Root 1
Name
two hundred twenty-one thousand six hundred forty-four
Scientific notation
2.21644 × 10^5
Engineering notation
2.21644 × 10^3
Prime Factorization
2 × 2 × 55411
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
110822
Product of the distinct prime numbers
The prime factorization of 221644 is 2 × 2 × 55411.
Since it has a total of 3 prime factors.
2 , 10 , 29 , 5 , 228 , 751 , 2201 , 5708 , 91778 , 77621 , 30744 , 538699 , 8083105 , 799588 , 10606511 , 52901913 , 990095362 , 392628230 , 6656401359 , 4297570706
n×2
443288
n×3
664932
n×4
886576
n×5
1108220
n÷2
110822
n÷3
73881.333333333
n÷3
55411
n÷5
44328.8
n2
49126062736
n3
10888497049057984
n4
2.4133700399414E+21
n5
5.3490898913277E+26
2 √n
470.79082403972
3 √n
60.518105821059
4 √n
21.697714719291
5 √n
11.725495270803
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221643
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221644 can be divided by 6 positive divisors.
The sum of these divisors (counting 221644) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110110000111001100
3
Ternary
102021001001
4
Quaternary
312013030
5
Quinary
24043034
6
Senary
4430044
8
Octal
660714
10
Decimal
221644
12
Duodecimal
a8324
16
Hexadecimal
361cc
20
Vigesimal
17e24
36
Base36
4r0s
md5
3f6fd29849243f026a239ef120bcdeea
sha1
1919c301a580f96cf01d61d4eb19a44c514b202d
sha256
1a80f64fd55eeed36f9bf10acee2f65f74f6abbef53e826528805b8751413157
sha512
e8d259fa25ee305b7693807cd344103b4227f85aff223ed3e97733604efa82f4a01c93cb38f0049cde383b5d01d8c71f57b8d1aba1e4c17afb7f2cf6079bf4fb
ripemd-160
bc8b706a0344972b7220e71b49b4f9f44dc6ca46
Diameter
443288
Circumference
1392630.3242245
Area
154334077791.21
Volume
4.560962978394E+16
Surface area
617336311164.84
Circumference
1392630.3242245
Perimeter
886576
Area
49126062736
Diagonal
313451.95081862
Surface area
294756376416
Volume
10888497049057984
Space diagonal
383898.6691928
Perimeter
664932
Area
21272209158.642
Altitude
191949.3345964
Surface area
21272209158.642
Volume
1.2832216833864E+15
Height
104483.98360621