221491305 is an odd 9-digits composite number following 221491304
and preceding 221491306 . In scientific notation, it is written as 2.21491305 × 10^8.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 99584640 positive integers (up to 221491305) that are relatively prime to 221491305.
221491305 has 24 divisors, whose sum is 334496448
The reverse of 221491305 is 503194122
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
two hundred twenty-one million four hundred ninety-one thousand three hundred five
Scientific notation
2.21491305 × 10^8
Engineering notation
2.21491305 × 10^6
Prime Factorization
35 × 3 × 3 × 61 × 11527
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
73830435
Product of the distinct prime numbers
The prime factorization of 221491305 is 35 × 3 × 3 × 61 × 11527.
Since it has a total of 5 prime factors.
4 , 3 , 73 , 4 , 832 , 943 , 3345 , 1613 , 76209 , 12213 , 627496 , 414077 , 9788108 , 3054949 , 30103638 , 32293083 , 908182611 , 966617619 , 1358864185 , 8107881239
n×2
442982610
n×3
664473915
n×4
885965220
n×5
1107456525
n÷2
110745652.5
n÷3
73830435
n÷3
55372826.25
n÷5
44298261
n2
49058398190603025
n3
1.0866008636446E+25
n4
2.4067264330278E+33
n5
5.3306897842931E+41
2 √n
14882.583949033
3 √n
605.0420524921
4 √n
121.99419637439
5 √n
46.673603919923
1 , 3 , 9 , 35 , 61 , 105 , 183 , 315 , 549 , 2135 , 6405 , 11527 , 19215 , 34581 , 103743 , 403445 , 703147 , 1210335 , 2109441 , 3631005 , 6328323 , 24610145 , 73830435 , 221491305
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221491304
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221491305 can be divided by 24 positive divisors.
The sum of these divisors (counting 221491305) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1101001100111011000001101001
3
Ternary
120102202220221200
4
Quaternary
31030323001221
5
Quinary
423200210210
6
Senary
33551154413
8
Octal
1514730151
10
Decimal
221491305
12
Duodecimal
62215a09
16
Hexadecimal
d33b069
20
Vigesimal
3946855
36
Base36
3nvbs9
md5
5a4101dae749ce77c96eef1b9c08943e
sha1
ebc4fd083d4cc7999cbc18850417a2ccc9ddbcd7
sha256
b8d3d5065ed4eb8ba5fa93ec93f09222c93c8189c1d4b06bb113726f6107a522
sha512
14d08fd0cec98e89e35f31d14f9707144067bb1ff5980b468f91bc035b160b686d4a6e7a1c77b012aecac08c52b765446753456044cc04ba05aaf7e0190474e7
ripemd-160
4df416131deb6d36f598e0069bd633d77ba4cb99
Diameter
442982610
Circumference
1391670913.244
Area
1.5412150335248E+17
Volume
4.5515430541471E+25
Surface area
6.1648601340992E+17
Circumference
1391670913.244
Perimeter
885965220
Area
49058398190603025
Diagonal
313236007.47872
Surface area
294350389143618150
Volume
1.0866008636446E+25
Space diagonal
383634193.69473
Perimeter
664473915
Area
2.1242909551017E+16
Altitude
191817096.84737
Surface area
2.1242909551017E+16
Volume
1.2805713985438E+24
Height
104412002.49291