221286720 is an even 9-digits composite number following 221286719
and preceding 221286721 . In scientific notation, it is written as 2.21286720 × 10^8.
The sum of its digits is 30. It has a total of 8 prime factors and 28 positive divisors.
There are 59009536 positive integers (up to 221286720) that are relatively prime to 221286720.
221286720 has 28 divisors, whose sum is 468392256
The reverse of 221286720 is 027682122
Previous prime number is 15
Is Prime? no
Number parity even
Number length 9
Sum of Digits 30
Digital Root 3
Name
two hundred twenty-one million two hundred eighty-six thousand seven hundred twenty
Scientific notation
2.21286720 × 10^8
Engineering notation
2.21286720 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 15 × 230507
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
6915210
Product of the distinct prime numbers
The prime factorization of 221286720 is 2 × 2 × 2 × 2 × 2 × 2 × 15 × 230507.
Since it has a total of 8 prime factors.
5 , 9 , 77 , 70 , 122 , 997 , 5612 , 1247 , 57825 , 15246 , 906286 , 164985 , 9175219 , 6036658 , 38381711 , 18379971 , 142127497 , 693384318 , 8572768222 , 5064187861
n×2
442573440
n×3
663860160
n×4
885146880
n×5
1106433600
n÷2
110643360
n÷3
73762240
n÷3
55321680
n÷5
44257344
n2
48967812448358400
n3
1.0835926602272E+25
n4
2.3978466559776E+33
n5
5.3061162156425E+41
2 √n
14875.709058731
3 √n
604.8557085943
4 √n
121.96601599926
5 √n
46.664978525655
1 , 2 , 4 , 8 , 15 , 16 , 30 , 32 , 60 , 64 , 120 , 240 , 480 , 960 , 230507 , 461014 , 922028 , 1844056 , 3457605 , 3688112 , 6915210 , 7376224 , 13830420 , 14752448 , 27660840 , 55321680 , 110643360 , 221286720
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-221286719
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 221286720 can be divided by 28 positive divisors.
The sum of these divisors (counting 221286720) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
1101001100001001000101000000
3
Ternary
120102101112022110
4
Quaternary
31030021011000
5
Quinary
423122133340
6
Senary
33542535320
8
Octal
1514110500
10
Decimal
221286720
12
Duodecimal
62137540
16
Hexadecimal
d309140
20
Vigesimal
3930gg0
36
Base36
3nqxxc
md5
ad3976b90deffcd176fba3686a946e46
sha1
f8386e3751d92f94fdddc7f7eebcc50d9d8fe142
sha256
cde41b0167b4c40c0c1681430b1f64bc9ec9a19cbf4013a5fd130cdc3b20a5f2
sha512
32814939436d79f61b1181b9eaf83ab347859aefde0c28fe18678e58ed144be29581881deb69c1f1cbfc56922c1c3c61f3fbba9466dbabcf8f504dde59d51fa0
ripemd-160
0c357fb94bbef3746fd71c16d663a1493658a146
Diameter
442573440
Circumference
1390385467.778
Area
1.5383691985013E+17
Volume
4.5389423211383E+25
Surface area
6.153476794005E+17
Circumference
1390385467.778
Perimeter
885146880
Area
48967812448358400
Diagonal
312946680.59706
Surface area
293806874690150400
Volume
1.0835926602272E+25
Space diagonal
383279842.08027
Perimeter
663860160
Area
2.1203684774015E+16
Altitude
191639921.04013
Surface area
2.1203684774015E+16
Volume
1.2770261968178E+24
Height
104315560.19902