821428086 is an even 9-digits composite number following 821428085
and preceding 821428087 . In scientific notation, it is written as 8.21428086 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 271250184 positive integers (up to 821428086) that are relatively prime to 821428086.
821428086 has 16 divisors, whose sum is 1658211264
The reverse of 821428086 is 680824128
Previous prime number is 107
Is Prime? no
Number parity even
Number length 9
Sum of Digits 39
Digital Root 3
Name
eight hundred twenty-one million four hundred twenty-eight thousand eighty-six
Scientific notation
8.21428086 × 10^8
Engineering notation
8.21428086 × 10^6
Prime Factorization
2 × 3 × 107 × 1279483
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
821428086
Product of the distinct prime numbers
The prime factorization of 821428086 is 2 × 3 × 107 × 1279483.
Since it has a total of 4 prime factors.
3 , 7 , 57 , 93 , 75 , 585 , 2532 , 5872 , 35783 , 54986 , 983870 , 988605 , 1376380 , 5959415 , 84899745 , 13249203 , 361944438 , 819620461 , 9041155769 , 3572958004
n×2
1642856172
n×3
2464284258
n×4
3285712344
n×5
4107140430
n÷2
410714043
n÷3
273809362
n÷3
205357021.5
n÷5
164285617.2
n2
674744100469623396
n3
5.5425375498855E+26
n4
4.5527960111856E+35
n5
3.7397945134166E+44
2 √n
28660.566742477
3 √n
936.53321078034
4 √n
169.29431987659
5 √n
60.661606788716
1 , 2 , 3 , 6 , 107 , 214 , 321 , 642 , 1279483 , 2558966 , 3838449 , 7676898 , 136904681 , 273809362 , 410714043 , 821428086
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
-821428085
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 821428086 can be divided by 16 positive divisors.
The sum of these divisors (counting 821428086) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111101011111111101110110
3
Ternary
2010020122212111110
4
Quaternary
300331133331312
5
Quinary
3140241144321
6
Senary
213302015450
8
Octal
6075377566
10
Decimal
821428086
12
Duodecimal
1ab117586
16
Hexadecimal
30f5ff76
20
Vigesimal
cgdia46
36
Base36
dl21yu
md5
ed915ca1a3d1df38a4f4188931e90b61
sha1
e241dff2f085b8aaacaad837a624718efe6dcd91
sha256
b1cb103dec7f63de9bf470f2f96c5636707424886713f5abff47132fd7b98c58
sha512
a61710fb6ae8cd120d75243c8ae50ca46b84847b37e68e8fc4e5a0348ebd2216b14e2911c5d692f52fa700ebb40d9e5e576cae14fb692438c9ffd625cc8efde9
ripemd-160
f6e34990e0550a81066235649d9cc400f82de928
Diameter
1642856172
Circumference
5161184880.8598
Area
2.1197711090884E+18
Volume
2.3216526998621E+27
Surface area
8.4790844363537E+18
Circumference
5161184880.8598
Perimeter
3285712344
Area
674744100469623396
Diagonal
1161674739.7354
Surface area
4048464602817740376
Volume
5.5425375498855E+26
Space diagonal
1422755179.7161
Perimeter
2464284258
Area
2.9217276603019E+17
Altitude
711377589.85803
Surface area
2.9217276603019E+17
Volume
6.5319431441752E+25
Height
387224913.24512