216221481 is an odd 9-digits composite number following 216221480
and preceding 216221482 . In scientific notation, it is written as 2.16221481 × 10^8.
The sum of its digits is 27. It has a total of 5 prime factors and 20 positive divisors.
There are 123554808 positive integers (up to 216221481) that are relatively prime to 216221481.
216221481 has 20 divisors, whose sum is 369140992
The reverse of 216221481 is 184122612
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
two hundred sixteen million two hundred twenty-one thousand four hundred eighty-one
Scientific notation
2.16221481 × 10^8
Engineering notation
2.16221481 × 10^6
Prime Factorization
3 × 9 × 3 × 7 × 381343
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
72073827
Product of the distinct prime numbers
The prime factorization of 216221481 is 3 × 9 × 3 × 7 × 381343.
Since it has a total of 5 prime factors.
5 , 7 , 14 , 66 , 454 , 58 , 3433 , 8644 , 31486 , 80749 , 160030 , 88908 , 9370612 , 1130022 , 69410975 , 77891307 , 40365289 , 496974041 , 8524682199 , 4061974439
n×2
432442962
n×3
648664443
n×4
864885924
n×5
1081107405
n÷2
108110740.5
n÷3
72073827
n÷3
54055370.25
n÷5
43244296.2
n2
46751728845833361
n3
1.0108728050357E+25
n4
2.1857241500743E+33
n5
4.7260051278654E+41
2 √n
14704.47146279
3 √n
600.20500494698
4 √n
121.26199512951
5 √n
46.449363537276
1 , 3 , 7 , 9 , 21 , 27 , 63 , 81 , 189 , 567 , 381343 , 1144029 , 2669401 , 3432087 , 8008203 , 10296261 , 24024609 , 30888783 , 72073827 , 216221481
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-216221480
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 216221481 can be divided by 20 positive divisors.
The sum of these divisors (counting 216221481) is 1, the average is 0.05.
Base
System
Value
2
Binary
1100111000110100011100101001
3
Ternary
120001212012010000
4
Quaternary
30320310130221
5
Quinary
420323041411
6
Senary
33242213213
8
Octal
1470643451
10
Decimal
216221481
12
Duodecimal
604b4209
16
Hexadecimal
ce34729
20
Vigesimal
37b7de1
36
Base36
3kqdk9
md5
1413502a4edda3313a0de6a5b1161a54
sha1
e0a077a8302f07913138128a79d23f05ec7d6fff
sha256
000266d78a7984ce1270fbd1c2db6bf30979c83d31cb528cd3b272733f930d00
sha512
823ac561636d8c4821d075cbc8cd0b83ac68ef8eeedfd4ab59a498d442e3fc77f3a17bc24ad446a8d4e76ebdc56b66d7e44bdd58c59e02de9814f89d4105fe2e
ripemd-160
6b2e344e3aa37d635e96b01acd3cd8e60e9b2469
Diameter
432442962
Circumference
1358559632.5158
Area
1.4687488788469E+17
Volume
4.2343341040183E+25
Surface area
5.8749955153877E+17
Circumference
1358559632.5158
Perimeter
864885924
Area
46751728845833361
Diagonal
305783350.9066
Surface area
280510373075000166
Volume
1.0108728050357E+25
Space diagonal
374506590.77979
Perimeter
648664443
Area
2.0244092425667E+16
Altitude
187253295.38989
Surface area
2.0244092425667E+16
Volume
1.1913250255963E+24
Height
101927783.63553