12821421 is an odd 8-digits composite number following 12821420
and preceding 12821422 . In scientific notation, it is written as 1.2821421 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 8547612 positive integers (up to 12821421) that are relatively prime to 12821421.
12821421 has 4 divisors, whose sum is 17095232
The reverse of 12821421 is 12412821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twelve million eight hundred twenty-one thousand four hundred twenty-one
Scientific notation
1.2821421 × 10^7
Engineering notation
1.2821421 × 10^6
Prime Factorization
3 × 4273807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12821421
Product of the distinct prime numbers
The prime factorization of 12821421 is 3 × 4273807.
Since it has a total of 2 prime factors.
5 , 4 , 63 , 96 , 954 , 490 , 9988 , 751 , 41943 , 33179 , 49347 , 87562 , 3853085 , 1041923 , 62008691 , 40013771 , 109594805 , 646384742 , 4380422087 , 5094964851
n×2
25642842
n×3
38464263
n×4
51285684
n×5
64107105
n÷2
6410710.5
n÷3
4273807
n÷3
3205355.25
n÷5
2564284.2
n2
164388836459241
n3
2.1076984799441E+21
n4
2.7023689552423E+28
n5
3.4648210072492E+35
2 √n
3580.7011883149
3 √n
234.05183671534
4 √n
59.838960454832
5 √n
26.398985177035
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
-12821420
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 12821421 can be divided by 4 positive divisors.
The sum of these divisors (counting 12821421) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111010001110101101
3
Ternary
220010101200110
4
Quaternary
300322032231
5
Quinary
11240241141
6
Senary
1134450233
8
Octal
60721655
10
Decimal
12821421
12
Duodecimal
4363979
16
Hexadecimal
c3a3ad
20
Vigesimal
402db1
36
Base36
7mt2l
md5
01c37df40cf9c10a5928c5dda7a3ce81
sha1
d2d772a30804feb9e215892c6ede5eff2aa7a6dd
sha256
53703125420e180f9fb976df2fe07190e0c7def3f66283d214ee538a05e4ac9c
sha512
675f31664826e6a3456bca5d70e9cf555536784c720a72d224085957f2633f82d8a6e6ed37ffbc526aca172deb518ef9b57f980b317974d4e67da490302eca53
ripemd-160
9f3e740dc94cef6ba8007f2673d20aed27317735
Diameter
25642842
Circumference
80559364.044364
Area
5.1644276095253E+14
Volume
8.8287067474329E+21
Surface area
2.0657710438101E+15
Circumference
80559364.044364
Perimeter
51285684
Area
164388836459241
Diagonal
18132227.467095
Surface area
986333018755446
Volume
2.1076984799441E+21
Space diagonal
22207352.597231
Perimeter
38464263
Area
71182454236134
Altitude
11103676.298615
Surface area
71182454236134
Volume
2.4839464797751E+20
Height
6044075.8223651