821428089 is an odd 9-digits composite number following 821428088
and preceding 821428090 . In scientific notation, it is written as 8.21428089 × 10^8.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 547618724 positive integers (up to 821428089) that are relatively prime to 821428089.
821428089 has 4 divisors, whose sum is 1095237456
The reverse of 821428089 is 980824128
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
eight hundred twenty-one million four hundred twenty-eight thousand eighty-nine
Scientific notation
8.21428089 × 10^8
Engineering notation
8.21428089 × 10^6
Prime Factorization
3 × 273809363
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
821428089
Product of the distinct prime numbers
The prime factorization of 821428089 is 3 × 273809363.
Since it has a total of 2 prime factors.
5 , 8 , 22 , 22 , 710 , 205 , 9315 , 9373 , 81703 , 36488 , 58713 , 783768 , 3702550 , 1958832 , 98121282 , 96588165 , 893902813 , 53521188 , 8577943046 , 8636937046
n×2
1642856178
n×3
2464284267
n×4
3285712356
n×5
4107140445
n÷2
410714044.5
n÷3
273809363
n÷3
205357022.25
n÷5
164285617.8
n2
674744105398191921
n3
5.5425376106125E+26
n4
4.5527960776961E+35
n5
3.7397945817086E+44
2 √n
28660.566794814
3 √n
936.53321192046
4 √n
169.29432003116
5 √n
60.661606833026
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
-821428088
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 821428089 can be divided by 4 positive divisors.
The sum of these divisors (counting 821428089) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111101011111111101111001
3
Ternary
2010020122212111120
4
Quaternary
300331133331321
5
Quinary
3140241144324
6
Senary
213302015453
8
Octal
6075377571
10
Decimal
821428089
12
Duodecimal
1ab117589
16
Hexadecimal
30f5ff79
20
Vigesimal
cgdia49
36
Base36
dl21yx
md5
2cfe3327224b1e9588c26b7c072f4043
sha1
4447a550dec8de2f076fd9bf199e2fb69275b8cf
sha256
0f3b23133c30806d388db086d08371cd55c287e55db9ffdf76497d695a001020
sha512
2adfdc2baa55b5dfc94dc065990c93c68954aad92a76cf8ec364c5b71da4deb13e5a1d89fa26a0a02db873def6c7f5d3841e207f82e663445c6d1571fc7d0ed9
ripemd-160
1d921715ff4fd989062bbb973c40f418a51f2db4
Diameter
1642856178
Circumference
5161184899.7094
Area
2.119771124572E+18
Volume
2.3216527252994E+27
Surface area
8.4790844982879E+18
Circumference
5161184899.7094
Perimeter
3285712356
Area
674744105398191921
Diagonal
1161674743.978
Surface area
4048464632389151526
Volume
5.5425376106125E+26
Space diagonal
1422755184.9122
Perimeter
2464284267
Area
2.9217276816432E+17
Altitude
711377592.4561
Surface area
2.9217276816432E+17
Volume
6.5319432157427E+25
Height
387224914.65934