221561 is an odd 6-digits composite number following 221560
and preceding 221562 . In scientific notation, it is written as 2.21561 × 10^5.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 208512 positive integers (up to 221561) that are relatively prime to 221561.
221561 has 4 divisors, whose sum is 234612
The reverse of 221561 is 165122
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 17
Digital Root 8
Name
two hundred twenty-one thousand five hundred sixty-one
Scientific notation
2.21561 × 10^5
Engineering notation
2.21561 × 10^3
Prime Factorization
17 × 13033
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221561
Product of the distinct prime numbers
The prime factorization of 221561 is 17 × 13033.
Since it has a total of 2 prime factors.
3 , 7 , 1 , 34 , 267 , 485 , 6831 , 8410 , 43863 , 49225 , 516414 , 942416 , 2535888 , 1684107 , 89408890 , 81798890 , 511514417 , 164327476 , 1781401212 , 5203991196
n×2
443122
n×3
664683
n×4
886244
n×5
1107805
n÷2
110780.5
n÷3
73853.666666667
n÷3
55390.25
n÷5
44312.2
n2
49089276721
n3
10876269239581481
n4
2.4097570889909E+21
n5
5.3390819039392E+26
2 √n
470.70266623422
3 √n
60.510550717817
4 √n
21.695683124396
5 √n
11.724616959711
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
-221560
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 221561 can be divided by 4 positive divisors.
The sum of these divisors (counting 221561) is 1, the average is 0.25.
Base
System
Value
2
Binary
110110000101111001
3
Ternary
102020220222
4
Quaternary
312011321
5
Quinary
24042221
6
Senary
4425425
8
Octal
660571
10
Decimal
221561
12
Duodecimal
a8275
16
Hexadecimal
36179
20
Vigesimal
17di1
36
Base36
4qyh
md5
d916e815bc0b73627bead04d20cb7943
sha1
9961f440732d6256ffb4844a2319a8cb5da69076
sha256
fe602ed728dd3724968d70898bff8ca2c7159b44d4760b9d71f24c545d89b395
sha512
b734a157c70c6ec4ec4d20c0b2081c4c23f5bf29368c41ee4e890daf7a3624dd36bde0a15618f40c4b11634915cba933458d575d7cbee485088d76f2c00f9e0c
ripemd-160
3621ffc4a12bec8f6643935e44f65455f4d0050f
Diameter
443122
Circumference
1392108.819844
Area
154218511116.73
Volume
4.5558410055378E+16
Surface area
616874044466.92
Circumference
1392108.819844
Perimeter
886244
Area
49089276721
Diagonal
313334.57109295
Surface area
294535660326
Volume
10876269239581481
Space diagonal
383754.90897577
Perimeter
664683
Area
21256280346.895
Altitude
191877.45448788
Surface area
21256280346.895
Volume
1.2817806222198E+15
Height
104444.85703098