221285 is an odd 6-digits composite number following 221284
and preceding 221286 . In scientific notation, it is written as 2.21285 × 10^5.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 177024 positive integers (up to 221285) that are relatively prime to 221285.
221285 has 4 divisors, whose sum is 265548
The reverse of 221285 is 582122
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2
Name
two hundred twenty-one thousand two hundred eighty-five
Scientific notation
2.21285 × 10^5
Engineering notation
2.21285 × 10^3
Prime Factorization
5 × 44257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221285
Product of the distinct prime numbers
The prime factorization of 221285 is 5 × 44257.
Since it has a total of 2 prime factors.
6 , 10 , 51 , 62 , 941 , 929 , 6528 , 6219 , 26293 , 40081 , 136733 , 318252 , 4792868 , 8323508 , 27998728 , 20504857 , 893273876 , 161291631 , 9472376044 , 7980741553
n×2
442570
n×3
663855
n×4
885140
n×5
1106425
n÷2
110642.5
n÷3
73761.666666667
n÷3
55321.25
n÷5
44257
n2
48967051225
n3
10835673930324125
n4
2.3977721056718E+21
n5
5.3059100040358E+26
2 √n
470.40939616466
3 √n
60.485414146529
4 √n
21.688923351902
5 √n
11.72169441655
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221284
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221285 can be divided by 4 positive divisors.
The sum of these divisors (counting 221285) is 1, the average is 0.25.
Base
System
Value
2
Binary
110110000001100101
3
Ternary
102020112202
4
Quaternary
312001211
5
Quinary
24040120
6
Senary
4424245
8
Octal
660145
10
Decimal
221285
12
Duodecimal
a8085
16
Hexadecimal
36065
20
Vigesimal
17d45
36
Base36
4qqt
md5
a0519e97f2550d4da620ffe3a6be4fb4
sha1
c4d50ba3e7a20c9cde388e7e01daaabcb43e877a
sha256
ade438d42e5e560fd0e824025d6246b65f00e3d959207957d18c5353bd429ff8
sha512
e7b73549ed10e95dd01549d6758bd073b22c5e42cfb19d57dfc4c90d5f01709e5f4a21d0b4781286f01ec34ded5525d0a66909cf62969ec6be5a9a5f25de37ab
ripemd-160
d173fa6a6b15ad45045b83c9c5e43a3eee5c2773
Diameter
442570
Circumference
1390374.6606992
Area
153834528396.42
Volume
4.5388364821601E+16
Surface area
615338113585.66
Circumference
1390374.6606992
Perimeter
885140
Area
48967051225
Diagonal
312944.24814973
Surface area
293802307350
Volume
10835673930324125
Space diagonal
383276.86295288
Perimeter
663855
Area
21203355154.632
Altitude
191638.43147644
Surface area
21203355154.632
Volume
1.2769964191431E+15
Height
104314.74938324