221409 is an odd 6-digits composite number following 221408
and preceding 221410 . In scientific notation, it is written as 2.21409 × 10^5.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 145152 positive integers (up to 221409) that are relatively prime to 221409.
221409 has 8 divisors, whose sum is 250120
The reverse of 221409 is 904122
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 18
Digital Root 9
Name
two hundred twenty-one thousand four hundred nine
Scientific notation
2.21409 × 10^5
Engineering notation
2.21409 × 10^3
Prime Factorization
9 × 73 × 337
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
221409
Product of the distinct prime numbers
The prime factorization of 221409 is 9 × 73 × 337.
Since it has a total of 3 prime factors.
5 , 7 , 79 , 11 , 521 , 849 , 6386 , 6178 , 64496 , 41731 , 333014 , 902948 , 4852448 , 9326080 , 69741951 , 31144919 , 423880682 , 5120546 , 8019716316 , 1923542930
n×2
442818
n×3
664227
n×4
885636
n×5
1107045
n÷2
110704.5
n÷3
73803
n÷3
55352.25
n÷5
44281.8
n2
49021945281
n3
10853899882720929
n4
2.4031511191334E+21
n5
5.320792861362E+26
2 √n
470.54117779425
3 √n
60.496709972946
4 √n
21.691961132969
5 √n
11.723007803742
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221408
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221409 can be divided by 8 positive divisors.
The sum of these divisors (counting 221409) is 1, the average is 0.125.
Base
System
Value
2
Binary
110110000011100001
3
Ternary
102020201100
4
Quaternary
312003201
5
Quinary
24041114
6
Senary
4425013
8
Octal
660341
10
Decimal
221409
12
Duodecimal
a8169
16
Hexadecimal
360e1
20
Vigesimal
17da9
36
Base36
4qu9
md5
a10c21610f13d09f900bc98771d40640
sha1
04a5dc7b88193907fbb1dade5fc7de3c98e006f0
sha256
08fef98d3947ba1c775deae0571e6b96eef1004b2f8e9cd2b723627ecfc1f4bb
sha512
e6d452b3d722dd8c7a068e6476652c62e27d5dd428434370c90ff76e8a272c996a2fa5865f1c0b9ca74044ddb9c8e576c8028f3e2a2839fa34534ebb7bbdeda6
ripemd-160
81f923542b9109fe8e7d005c47cf5af808587025
Diameter
442818
Circumference
1391153.7756773
Area
154006983159.47
Volume
4.5464709512474E+16
Surface area
616027932637.88
Circumference
1391153.7756773
Perimeter
885636
Area
49021945281
Diagonal
313119.61063146
Surface area
294131671686
Volume
10853899882720929
Space diagonal
383491.63725302
Perimeter
664227
Area
21227124978.138
Altitude
191745.81862651
Surface area
21227124978.138
Volume
1.279144368232E+15
Height
104373.20354382