12820281 is an odd 8-digits composite number following 12820280
and preceding 12820282 . In scientific notation, it is written as 1.2820281 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 8546852 positive integers (up to 12820281) that are relatively prime to 12820281.
12820281 has 4 divisors, whose sum is 17093712
The reverse of 12820281 is 18202821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twelve million eight hundred twenty thousand two hundred eighty-one
Scientific notation
1.2820281 × 10^7
Engineering notation
1.2820281 × 10^6
Prime Factorization
3 × 4273427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12820281
Product of the distinct prime numbers
The prime factorization of 12820281 is 3 × 4273427.
Since it has a total of 2 prime factors.
7 , 9 , 61 , 79 , 391 , 722 , 4174 , 2445 , 7318 , 96652 , 269398 , 774993 , 991834 , 9760177 , 71508165 , 50130468 , 63221838 , 487211209 , 2928982357 , 4193041432
n×2
25640562
n×3
38460843
n×4
51281124
n×5
64101405
n÷2
6410140.5
n÷3
4273427
n÷3
3205070.25
n÷5
2564056.2
n2
164359604918961
n3
2.1071363201101E+21
n4
2.7014079729117E+28
n5
3.4632809308368E+35
2 √n
3580.5419980779
3 √n
234.04489970468
4 √n
59.837630284612
5 √n
26.39851571404
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
-12820280
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 12820281 can be divided by 4 positive divisors.
The sum of these divisors (counting 12820281) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111001111100111001
3
Ternary
220010100010020
4
Quaternary
300321330321
5
Quinary
11240222111
6
Senary
1134441053
8
Octal
60717471
10
Decimal
12820281
12
Duodecimal
4363189
16
Hexadecimal
c39f39
20
Vigesimal
402ae1
36
Base36
7ms6x
md5
6ce1b344fb2c3104342ce97d6e0e12fb
sha1
8bd94f7d767225ca8f789f04be1f75c3e297cf08
sha256
6242d2018e20ce6291ee07890e275428ad25d39beb95c41995d733bfc07cf14a
sha512
a9499f5213e5515a79fdcb2c036fa7853df2f772c2ef3982172a5578512adf69a2c2e7523032a3501763ee93acfd50a167110857fca5b6804701fba705d06914
ripemd-160
4cf83ca7c8df96177c41a99ed8da557393ba8f2f
Diameter
25640562
Circumference
80552201.213114
Area
5.1635092736033E+14
Volume
8.8263519778267E+21
Surface area
2.0654037094413E+15
Circumference
80552201.213114
Perimeter
51281124
Area
164359604918961
Diagonal
18130615.263634
Surface area
986157629513766
Volume
2.1071363201101E+21
Space diagonal
22205378.05931
Perimeter
38460843
Area
71169796607897
Altitude
11102689.029655
Surface area
71169796607897
Volume
2.4832839680572E+20
Height
6043538.4212114