216804985 is an odd 9-digits composite number following 216804984
and preceding 216804986 . In scientific notation, it is written as 2.16804985 × 10^8.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 173443984 positive integers (up to 216804985) that are relatively prime to 216804985.
216804985 has 4 divisors, whose sum is 260165988
The reverse of 216804985 is 589408612
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
two hundred sixteen million eight hundred four thousand nine hundred eighty-five
Scientific notation
2.16804985 × 10^8
Engineering notation
2.16804985 × 10^6
Prime Factorization
5 × 43360997
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
216804985
Product of the distinct prime numbers
The prime factorization of 216804985 is 5 × 43360997.
Since it has a total of 2 prime factors.
4 , 2 , 7 , 64 , 75 , 658 , 4895 , 1289 , 71033 , 38242 , 740611 , 789890 , 9816646 , 994061 , 12412517 , 45524234 , 510708696 , 968046316 , 2859077356 , 2632783206
n×2
433609970
n×3
650414955
n×4
867219940
n×5
1084024925
n÷2
108402492.5
n÷3
72268328.333333
n÷3
54201246.25
n÷5
43360997
n2
47004401520850225
n3
1.0190788566662E+25
n4
2.2094137623333E+33
n5
4.7901191760147E+41
2 √n
14724.299134424
3 √n
600.74443246666
4 √n
121.34372309446
5 √n
46.474406543789
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-216804984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 216804985 can be divided by 4 positive divisors.
The sum of these divisors (counting 216804985) is 1, the average is 0.25.
Base
System
Value
2
Binary
1100111011000010111001111001
3
Ternary
120002221211112021
4
Quaternary
30323002321321
5
Quinary
421000224420
6
Senary
33302514441
8
Octal
1473027171
10
Decimal
216804985
12
Duodecimal
60735a21
16
Hexadecimal
cec2e79
20
Vigesimal
37f0c95
36
Base36
3l2vsp
md5
3c08097d84bac87e182ca5b43d9c524b
sha1
e9262d4b4e472c80fb687d1d7014adf930391c9e
sha256
1be7a5ea7f0757a23a72dfac3debdca2a49a6000e03b1120685ca553ed3d16f4
sha512
cd0c25f6b0feb8b1bb4a114abee8060e4ab2513a8fcc30a1f48b19ac99ac273d4fb49d486930397def3da37dbb12dee1254dacd5ff4572d2f38ed121bd703b7a
ripemd-160
32c68970446b465be47b6c5815b0140f5907fca0
Diameter
433609970
Circumference
1362225896.2753
Area
1.4766868250429E+17
Volume
4.2687075327083E+25
Surface area
5.9067473001715E+17
Circumference
1362225896.2753
Perimeter
867219940
Area
47004401520850225
Diagonal
306608550.1771
Surface area
282026409125101350
Volume
1.0190788566662E+25
Space diagonal
375517249.35421
Perimeter
650414955
Area
2.035350290337E+16
Altitude
187758624.6771
Surface area
2.035350290337E+16
Volume
1.2009959501875E+24
Height
102202850.05903