221665909 is an odd 9-digits prime number following 221665908
and preceding 221665910 . In scientific notation, it is written as 2.21665909 × 10^8.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 221665908 positive integers (up to 221665909) that are relatively prime to 221665909.
221665909 has 2 divisors, whose sum is 221665910
The reverse of 221665909 is 909566122
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
two hundred twenty-one million six hundred sixty-five thousand nine hundred nine
Scientific notation
2.21665909 × 10^8
Engineering notation
2.21665909 × 10^6
Prime Factorization
221665909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
221665909
Product of the distinct prime numbers
The prime factorization of 221665909 is 221665909.
Since it has a total of 1 prime factors.
6 , 2 , 71 , 54 , 640 , 726 , 3149 , 5688 , 23799 , 39569 , 908398 , 333947 , 9676580 , 8925518 , 96654905 , 2483340 , 4156532 , 312609792 , 8401191716 , 54801826
n×2
443331818
n×3
664997727
n×4
886663636
n×5
1108329545
n÷2
110832954.5
n÷3
73888636.333333
n÷3
55416477.25
n÷5
44333181.8
n2
49135775212796281
n3
1.0891726276964E+25
n4
2.4143244057624E+33
n5
5.3517341402422E+41
2 √n
14888.448844658
3 √n
605.20099780586
4 √n
122.01823160765
5 √n
46.680960262376
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
221665910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
110832955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
14888.448878241
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999909774
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221665909 can be divided by 2 positive divisors.
The sum of these divisors (counting 221665909) is 221665910, the average is 110832955.
Base
System
Value
2
Binary
1101001101100101101001110101
3
Ternary
120110002210110111
4
Quaternary
31031211221311
5
Quinary
423221302114
6
Senary
33555023021
8
Octal
1515455165
10
Decimal
221665909
12
Duodecimal
6229aa71
16
Hexadecimal
d365a75
20
Vigesimal
39584f9
36
Base36
3nz2id
md5
be9a5ef09d92cde802378e02c522882f
sha1
994e86c806976d47ee8aba9b4c3c6a1208b77a1b
sha256
c708196da6b3449675fa9bd0f4038f2cb6b85cef0018e56f383eb850a581daf2
sha512
4614b2ebdbe68269e784bd58809b10aeff5daaae4579577a25c6da4e12c7671413c244ad94590b6bdcb8833a2ad16204138676838c227e47ec306450857adec8
ripemd-160
e59515694c752b1a0dcf32eb0dba76cd60242322
Diameter
443331818
Circumference
1392767982.5314
Area
1.5436459043696E+17
Volume
4.5623156342162E+25
Surface area
6.1745836174784E+17
Circumference
1392767982.5314
Perimeter
886663636
Area
49135775212796281
Diagonal
313482934.82356
Surface area
294814651276777686
Volume
1.0891726276964E+25
Space diagonal
383936616.69394
Perimeter
664997727
Area
2.1276414784462E+16
Altitude
191968308.34697
Surface area
2.1276414784462E+16
Volume
1.2836022515448E+24
Height
104494311.60785