221731808 is an even 9-digits composite number following 221731807
and preceding 221731809 . In scientific notation, it is written as 2.21731808 × 10^8.
The sum of its digits is 32. It has a total of 7 prime factors and 24 positive divisors.
There are 109787904 positive integers (up to 221731808) that are relatively prime to 221731808.
221731808 has 24 divisors, whose sum is 440779248
The reverse of 221731808 is 808137122
Previous prime number is 103
Is Prime? no
Number parity even
Number length 9
Sum of Digits 32
Digital Root 5
Name
two hundred twenty-one million seven hundred thirty-one thousand eight hundred eight
Scientific notation
2.21731808 × 10^8
Engineering notation
2.21731808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 103 × 67273
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
13858238
Product of the distinct prime numbers
The prime factorization of 221731808 is 2 × 2 × 2 × 2 × 2 × 103 × 67273.
Since it has a total of 7 prime factors.
9 , 6 , 61 , 16 , 259 , 362 , 5738 , 410 , 52617 , 28486 , 149235 , 772633 , 3278803 , 3972483 , 72089590 , 84817808 , 725920069 , 195235383 , 2058007164 , 5687174844
n×2
443463616
n×3
665195424
n×4
886927232
n×5
1108659040
n÷2
110865904
n÷3
73910602.666667
n÷3
55432952
n÷5
44346361.6
n2
49164994678948864
n3
1.0901443160474E+25
n4
2.4171967017811E+33
n5
5.3596939497755E+41
2 √n
14890.661771728
3 √n
605.26096521237
4 √n
122.02729928884
5 √n
46.683735486466
1 , 2 , 4 , 8 , 16 , 32 , 103 , 206 , 412 , 824 , 1648 , 3296 , 67273 , 134546 , 269092 , 538184 , 1076368 , 2152736 , 6929119 , 13858238 , 27716476 , 55432952 , 110865904 , 221731808
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
-221731807
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 221731808 can be divided by 24 positive divisors.
The sum of these divisors (counting 221731808) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1101001101110101101111100000
3
Ternary
120110020010212012
4
Quaternary
31031311233200
5
Quinary
423230404213
6
Senary
34000252052
8
Octal
1515655740
10
Decimal
221731808
12
Duodecimal
62311028
16
Hexadecimal
d375be0
20
Vigesimal
395g9a8
36
Base36
3o0hcw
md5
5408e7fde7ee0ca19d3f1ca4b1daf985
sha1
41191b02b62efc93ca8ec6f2fb2bac3ad55b4b0b
sha256
d3a5f5a46f549fe6721ea3ba7033504cc9c2a55048e2c86b2023ae0b37fec9be
sha512
248b273dadc76307be3e91be63d161ad43c280a5c18cbdf49b714bcfb20d0b46c7772a02f634ac68d2ef4d70e3f5ef5c4ea7ac99d00052f6cb17db16303704fe
ripemd-160
78c1be15138a3a64ea74d057e69f8d3fdff48bcd
Diameter
443463616
Circumference
1393182038.16
Area
1.5445638609717E+17
Volume
4.5663858328628E+25
Surface area
6.1782554438867E+17
Circumference
1393182038.16
Perimeter
886927232
Area
49164994678948864
Diagonal
313576130.08311
Surface area
294989968073693184
Volume
1.0901443160474E+25
Space diagonal
384050757.11011
Perimeter
665195424
Area
2.1289067184448E+16
Altitude
192025378.55505
Surface area
2.1289067184448E+16
Volume
1.2847473972484E+24
Height
104525376.69437