216948981 is an odd 9-digits composite number following 216948980
and preceding 216948982 . In scientific notation, it is written as 2.16948981 × 10^8.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 140300160 positive integers (up to 216948981) that are relatively prime to 216948981.
216948981 has 16 divisors, whose sum is 298054080
The reverse of 216948981 is 189849612
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
two hundred sixteen million nine hundred forty-eight thousand nine hundred eighty-one
Scientific notation
2.16948981 × 10^8
Engineering notation
2.16948981 × 10^6
Prime Factorization
3 × 89 × 53 × 15331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
216948981
Product of the distinct prime numbers
The prime factorization of 216948981 is 3 × 89 × 53 × 15331.
Since it has a total of 4 prime factors.
10 , 1 , 13 , 27 , 636 , 493 , 8381 , 9210 , 8567 , 58119 , 40727 , 300800 , 7315312 , 5723601 , 24252895 , 70731538 , 666696985 , 894536018 , 1705614193 , 7897835068
n×2
433897962
n×3
650846943
n×4
867795924
n×5
1084744905
n÷2
108474490.5
n÷3
72316327
n÷3
54237245.25
n÷5
43389796.2
n2
47066860356938361
n3
1.0211107393307E+25
n4
2.2152893438595E+33
n5
4.8060476577048E+41
2 √n
14729.188063162
3 √n
600.87740242732
4 √n
121.36386638189
5 √n
46.48057831282
1 , 3 , 53 , 89 , 159 , 267 , 4717 , 14151 , 15331 , 45993 , 812543 , 1364459 , 2437629 , 4093377 , 72316327 , 216948981
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-216948980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 216948981 can be divided by 16 positive divisors.
The sum of these divisors (counting 216948981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100111011100110000011110101
3
Ternary
120010020011001110
4
Quaternary
30323212003311
5
Quinary
421014331411
6
Senary
33305545233
8
Octal
1473460365
10
Decimal
216948981
12
Duodecimal
607a5219
16
Hexadecimal
cee60f5
20
Vigesimal
37fic91
36
Base36
3l5ywl
md5
7e4c38c7ddd58cd1b738a8400a0657f1
sha1
e6c29ba021bdb018ce72dce929551320b580579e
sha256
5851a2623581c406c2cccb6c3fe5e4472da7a83df16bd996d5d3c613bd26f01f
sha512
6a93dfb70c31be67ef45155c873692ca542f50b00c3cfa55cca9488acdbb032b2ae64468d21903e353e412ec61eb62e2dc2971353c31f841bf8ef5518ea0fc96
ripemd-160
f5945cfc2d6adce0584eed8fd507e914b5788f85
Diameter
433897962
Circumference
1363130649.8268
Area
1.4786490272489E+17
Volume
4.2772186629107E+25
Surface area
5.9145961089958E+17
Circumference
1363130649.8268
Perimeter
867795924
Area
47066860356938361
Diagonal
306812191.27322
Surface area
282401162141630166
Volume
1.0211107393307E+25
Space diagonal
375766657.74229
Perimeter
650846943
Area
2.0380548372742E+16
Altitude
187883328.87115
Surface area
2.0380548372742E+16
Volume
1.2033905468719E+24
Height
102270730.42441