812821421 is an odd 9-digits composite number following 812821420
and preceding 812821422 . In scientific notation, it is written as 8.12821421 × 10^8.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 798291648 positive integers (up to 812821421) that are relatively prime to 812821421.
812821421 has 8 divisors, whose sum is 827424000
The reverse of 812821421 is 124128218
Previous prime number is 337
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 29
Digital Root 2
Name
eight hundred twelve million eight hundred twenty-one thousand four hundred twenty-one
Scientific notation
8.12821421 × 10^8
Engineering notation
8.12821421 × 10^6
Prime Factorization
67 × 337 × 35999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
812821421
Product of the distinct prime numbers
The prime factorization of 812821421 is 67 × 337 × 35999.
Since it has a total of 3 prime factors.
7 , 3 , 41 , 95 , 195 , 294 , 3035 , 3484 , 29928 , 22194 , 239013 , 802899 , 8311930 , 4001595 , 42542944 , 11156271 , 333790906 , 702697140 , 214826606 , 3074724463
n×2
1625642842
n×3
2438464263
n×4
3251285684
n×5
4064107105
n÷2
406410710.5
n÷3
270940473.66667
n÷3
203205355.25
n÷5
162564284.2
n2
660678662436459241
n3
5.3701376922598E+26
n4
4.3649629499883E+35
n5
3.5479353876218E+44
2 √n
28510.0231673
3 √n
933.25081990214
4 √n
168.84911361124
5 √n
60.533952005595
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-812821420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 812821421 can be divided by 8 positive divisors.
The sum of these divisors (counting 812821421) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000011100101010101110101101
3
Ternary
2002122110121101002
4
Quaternary
300130222232231
5
Quinary
3131040241141
6
Senary
212353330045
8
Octal
6034525655
10
Decimal
812821421
12
Duodecimal
1a8266925
16
Hexadecimal
3072abad
20
Vigesimal
ce02db1
36
Base36
dfxl0t
md5
b81b4d2384a1f40c87ba746e8607d4dc
sha1
ab4a863cfe7a40168409037efb88571cc902c299
sha256
d4626f84e5ae3b21e35d6f60c14d69e94fc9c6278d51860f3a39a6b8ef5b2341
sha512
de6be6875daff8a616acf7b66afbe5b732469f769e50387a3810f9716bdb9e710aab099bf76bf78d3d06eb596ee420d4ac52bafd9fa7cdc07b37486fec952d0b
ripemd-160
9a43304386e17625dee9ee06b4b009daf15f4209
Diameter
1625642842
Circumference
5107107609.788
Area
2.0755832322939E+18
Volume
2.2494380163692E+27
Surface area
8.3023329291756E+18
Circumference
5107107609.788
Perimeter
3251285684
Area
660678662436459241
Diagonal
1149503077.3656
Surface area
3964071974618755446
Volume
5.3701376922598E+26
Space diagonal
1407847998.6523
Perimeter
2438464263
Area
2.8608225270415E+17
Altitude
703923999.32617
Surface area
2.8608225270415E+17
Volume
6.328767963504E+25
Height
383167692.45519