216944981 is an odd 9-digits composite number following 216944980
and preceding 216944982 . In scientific notation, it is written as 2.16944981 × 10^8.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 189945600 positive integers (up to 216944981) that are relatively prime to 216944981.
216944981 has 16 divisors, whose sum is 245548800
The reverse of 216944981 is 189449612
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 44
Digital Root 8
Name
two hundred sixteen million nine hundred forty-four thousand nine hundred eighty-one
Scientific notation
2.16944981 × 10^8
Engineering notation
2.16944981 × 10^6
Prime Factorization
11 × 79 × 41 × 6089
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
216944981
Product of the distinct prime numbers
The prime factorization of 216944981 is 11 × 79 × 41 × 6089.
Since it has a total of 4 prime factors.
2 , 9 , 55 , 64 , 771 , 715 , 3749 , 9992 , 44815 , 82125 , 957418 , 44534 , 6776716 , 7276559 , 73796076 , 49386002 , 294577660 , 218206538 , 6177501289 , 3038674697
n×2
433889962
n×3
650834943
n×4
867779924
n×5
1084724905
n÷2
108472490.5
n÷3
72314993.666667
n÷3
54236245.25
n÷5
43388996.2
n2
47065124781090361
n3
1.0210542601396E+25
n4
2.2151259706596E+33
n5
4.8056046161735E+41
2 √n
14729.052277726
3 √n
600.87370950934
4 √n
121.36330696601
5 √n
46.480406914288
1 , 11 , 41 , 79 , 451 , 869 , 3239 , 6089 , 35629 , 66979 , 249649 , 481031 , 2746139 , 5291341 , 19722271 , 216944981
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
-216944980
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 216944981 can be divided by 16 positive divisors.
The sum of these divisors (counting 216944981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100111011100101000101010101
3
Ternary
120010012221120022
4
Quaternary
30323211011111
5
Quinary
421014214411
6
Senary
33305514525
8
Octal
1473450525
10
Decimal
216944981
12
Duodecimal
607a2a45
16
Hexadecimal
cee5155
20
Vigesimal
37fi291
36
Base36
3l5vth
md5
f7b70d375c326b023fc6421737297fcf
sha1
7d996b5d4605cb44c71716d08dd3ff99afd883bf
sha256
fd877468a264dc500d97e37b920c4b194b4dde25d7f4e5775ca11334d35b02d7
sha512
3cd86e3a6730925f0a142111c1d0ca26571d68a038823c0544932afa4b84dd3c84021d2926100b67d2481fa4b742933aee42927f036bcaf43aeb4f95783dcfaa
ripemd-160
e1e360cfea38965ee9b5a8e222cb2ef27c88d5b9
Diameter
433889962
Circumference
1363105517.0856
Area
1.4785945025256E+17
Volume
4.2769820834283E+25
Surface area
5.9143780101024E+17
Circumference
1363105517.0856
Perimeter
867779924
Area
47065124781090361
Diagonal
306806534.41897
Surface area
282390748686542166
Volume
1.0210542601396E+25
Space diagonal
375759729.53906
Perimeter
650834943
Area
2.0379796846354E+16
Altitude
187879864.76953
Surface area
2.0379796846354E+16
Volume
1.2033239855069E+24
Height
102268844.80632