221844 is an even 6-digits composite number following 221843
and preceding 221845 . In scientific notation, it is written as 2.21844 × 10^5.
The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors.
There are 59616 positive integers (up to 221844) that are relatively prime to 221844.
221844 has 12 divisors, whose sum is 392000
The reverse of 221844 is 448122
Previous prime number is 399
Is Prime? no
Number parity even
Number length 6
Sum of Digits 21
Digital Root 3
Name
two hundred twenty-one thousand eight hundred forty-four
Scientific notation
2.21844 × 10^5
Engineering notation
2.21844 × 10^3
Prime Factorization
2 × 2 × 399 × 139
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
110922
Product of the distinct prime numbers
The prime factorization of 221844 is 2 × 2 × 399 × 139.
Since it has a total of 4 prime factors.
5 , 1 , 17 , 91 , 549 , 755 , 1289 , 9682 , 70458 , 14048 , 670849 , 735805 , 3769366 , 5055052 , 92350019 , 83148751 , 308719926 , 915847786 , 9597717034 , 3028263901
n×2
443688
n×3
665532
n×4
887376
n×5
1109220
n÷2
110922
n÷3
73948
n÷3
55461
n÷5
44368.8
n2
49214760336
n3
10917999291979584
n4
2.4220926349299E+21
n5
5.3732671850339E+26
2 √n
471.00318470261
3 √n
60.536303144138
4 √n
21.702607785762
5 √n
11.727610602663
1 , 2 , 4 , 139 , 278 , 399 , 556 , 798 , 1596 , 55461 , 110922 , 221844
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221843
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221844 can be divided by 12 positive divisors.
The sum of these divisors (counting 221844) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110110001010010100
3
Ternary
102021022110
4
Quaternary
312022110
5
Quinary
24044334
6
Senary
4431020
8
Octal
661224
10
Decimal
221844
12
Duodecimal
a8470
16
Hexadecimal
36294
20
Vigesimal
17ec4
36
Base36
4r6c
md5
9dc6628f135b65aebb719dc2750d940f
sha1
da4b58d21041c577a8e5cd6bf599046fb1900b89
sha256
484da598c15bf6413d057a9894c1539380c2c797617e83373ee0450a8be1acc1
sha512
9119c42f09d20e527004b14f91de7f954170a7fcb891e740092e9fe78722f640fab72b853519feac18372659bb6217960beb9c64db844d93366cf144122e1e07
ripemd-160
b275ae1197f1b169af407d28220dec22ad8f14d2
Diameter
443688
Circumference
1393886.9612859
Area
154612729519.76
Volume
4.5733208490109E+16
Surface area
618450918079.04
Circumference
1393886.9612859
Perimeter
887376
Area
49214760336
Diagonal
313734.7935311
Surface area
295288562016
Volume
10917999291979584
Space diagonal
384245.07935431
Perimeter
665532
Area
21310616346.069
Altitude
192122.53967716
Surface area
21310616346.069
Volume
1.2866985560581E+15
Height
104578.26451037