221381 is an odd 6-digits composite number following 221380
and preceding 221382 . In scientific notation, it is written as 2.21381 × 10^5.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 217152 positive integers (up to 221381) that are relatively prime to 221381.
221381 has 4 divisors, whose sum is 225612
The reverse of 221381 is 183122
Previous prime number is 4177
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 17
Digital Root 8
Name
two hundred twenty-one thousand three hundred eighty-one
Scientific notation
2.21381 × 10^5
Engineering notation
2.21381 × 10^3
Prime Factorization
4177 × 53
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
221381
Product of the distinct prime numbers
The prime factorization of 221381 is 4177 × 53.
Since it has a total of 2 prime factors.
3 , 3 , 10 , 98 , 397 , 741 , 7784 , 5289 , 69923 , 80391 , 147476 , 407738 , 6763530 , 1659634 , 610372 , 67141658 , 371514858 , 726719769 , 4917769797 , 241717890
n×2
442762
n×3
664143
n×4
885524
n×5
1106905
n÷2
110690.5
n÷3
73793.666666667
n÷3
55345.25
n÷5
44276.2
n2
49009547161
n3
10849782560049341
n4
2.4019357129263E+21
n5
5.3174293006333E+26
2 √n
470.51142387832
3 √n
60.494159671182
4 √n
21.691275293959
5 √n
11.722711283886
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
-221380
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 221381 can be divided by 4 positive divisors.
The sum of these divisors (counting 221381) is 1, the average is 0.25.
Base
System
Value
2
Binary
110110000011000101
3
Ternary
102020200022
4
Quaternary
312003011
5
Quinary
24041011
6
Senary
4424525
8
Octal
660305
10
Decimal
221381
12
Duodecimal
a8145
16
Hexadecimal
360c5
20
Vigesimal
17d91
36
Base36
4qth
md5
a3b128c92930f7df933484b475bf7beb
sha1
b79d72656e6ca8a01ecde8e76c053a75b2f8218e
sha256
3263a95ee5b29488d013438de2ac441f252a3379c9a970a33053ccf5f4f261d6
sha512
ce95637932f3dd5e7d32a64ba1cec67ee7c1758ced4b7f0bfbed1c117ac357e7f61beb8253414cf34cda53019dea166cfa11508baa264e659d96211882289be5
ripemd-160
a73d3b59df4815488f55c9dad20f523baf7f51c2
Diameter
442762
Circumference
1390977.8464887
Area
153968033316.76
Volume
4.5447462911597E+16
Surface area
615872133267.04
Circumference
1390977.8464887
Perimeter
885524
Area
49009547161
Diagonal
313080.01265172
Surface area
294057282966
Volume
10849782560049341
Space diagonal
383443.13983041
Perimeter
664143
Area
21221756434.699
Altitude
191721.5699152
Surface area
21221756434.699
Volume
1.2786591371017E+15
Height
104360.00421724