821021330 is an even 9-digits composite number following 821021329
and preceding 821021331 . In scientific notation, it is written as 8.21021330 × 10^8.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 326934960 positive integers (up to 821021330) that are relatively prime to 821021330.
821021330 has 16 divisors, whose sum is 1484469504
The reverse of 821021330 is 033120128
Previous prime number is 223
Is Prime? no
Number parity even
Number length 9
Sum of Digits 20
Digital Root 2
Name
eight hundred twenty-one million twenty-one thousand three hundred thirty
Scientific notation
8.21021330 × 10^8
Engineering notation
8.21021330 × 10^6
Prime Factorization
2 × 5 × 223 × 368171
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
821021330
Product of the distinct prime numbers
The prime factorization of 821021330 is 2 × 5 × 223 × 368171.
Since it has a total of 4 prime factors.
1 , 7 , 19 , 92 , 314 , 117 , 4279 , 1806 , 14901 , 83681 , 275176 , 135080 , 5674175 , 6737557 , 41451674 , 85093955 , 110741093 , 283649446 , 3238910117 , 9422473975
n×2
1642042660
n×3
2463063990
n×4
3284085320
n×5
4105106650
n÷2
410510665
n÷3
273673776.66667
n÷3
205255332.5
n÷5
164204266
n2
674076024314968900
n3
5.5343079400419E+26
n4
4.5437848655627E+35
n5
3.7305442935582E+44
2 √n
28653.469772438
3 √n
936.37860061433
4 √n
169.2733581295
5 √n
60.655597897192
1 , 2 , 5 , 10 , 223 , 446 , 1115 , 2230 , 368171 , 736342 , 1840855 , 3681710 , 82102133 , 164204266 , 410510665 , 821021330
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
-821021329
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 821021330 can be divided by 16 positive divisors.
The sum of these divisors (counting 821021330) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111011111100101010010010
3
Ternary
2010012220012112102
4
Quaternary
300323330222102
5
Quinary
3140140140310
6
Senary
213245200402
8
Octal
6073745222
10
Decimal
821021330
12
Duodecimal
1aab60102
16
Hexadecimal
30efca92
20
Vigesimal
cgb7d6a
36
Base36
dktc42
md5
ca795a65c3da9bcc3be8a5fa6acc2f38
sha1
f72383277de12389c02725ed4ab1f39924782b0e
sha256
288e6e571acb5c498fde0547f8f7a6f7184874f803424941dfa4bc5029c494a3
sha512
0e756d5fbe5d326cc9e43083a9571eac2b1fc22d6fe9bc6f62b5802781a185784e6691677966fd56a5ee04f05cd70b8344da87f369d605381e70814390bc8df0
ripemd-160
0a3fe4f0a474c2d773584f08c169c07f51f157b8
Diameter
1642042660
Circumference
5158629157.537
Area
2.1176722859489E+18
Volume
2.3182054889519E+27
Surface area
8.4706891437957E+18
Circumference
5158629157.537
Perimeter
3284085320
Area
674076024314968900
Diagonal
1161099499.8836
Surface area
4044456145889813400
Volume
5.5343079400419E+26
Space diagonal
1422050657.6578
Perimeter
2463063990
Area
2.9188348056939E+17
Altitude
711025328.82889
Surface area
2.9188348056939E+17
Volume
6.5222444559636E+25
Height
387033166.62787