12931821 is an odd 8-digits composite number following 12931820
and preceding 12931822 . In scientific notation, it is written as 1.2931821 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 7389576 positive integers (up to 12931821) that are relatively prime to 12931821.
12931821 has 8 divisors, whose sum is 18063584
The reverse of 12931821 is 12813921
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twelve million nine hundred thirty-one thousand eight hundred twenty-one
Scientific notation
1.2931821 × 10^7
Engineering notation
1.2931821 × 10^6
Prime Factorization
3 × 21 × 205267
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12931821
Product of the distinct prime numbers
The prime factorization of 12931821 is 3 × 21 × 205267.
Since it has a total of 3 prime factors.
7 , 1 , 45 , 71 , 856 , 243 , 7929 , 5227 , 74803 , 28273 , 402809 , 490884 , 5523832 , 1873949 , 37483775 , 11831060 , 149249984 , 830532256 , 2272101958 , 5364688887
n×2
25863642
n×3
38795463
n×4
51727284
n×5
64659105
n÷2
6465910.5
n÷3
4310607
n÷3
3232955.25
n÷5
2586364.2
n2
167231994376041
n3
2.162614216744E+21
n4
2.7966539942988E+28
n5
3.6165828853207E+35
2 √n
3596.0841202619
3 √n
234.72169256533
4 √n
59.967358790111
5 √n
26.444291566497
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
-12931820
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 12931821 can be divided by 8 positive divisors.
The sum of these divisors (counting 12931821) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010101001011101101
3
Ternary
220100000010100
4
Quaternary
301111023231
5
Quinary
11302304241
6
Senary
1141101313
8
Octal
61251355
10
Decimal
12931821
12
Duodecimal
43b7839
16
Hexadecimal
c552ed
20
Vigesimal
40g9b1
36
Base36
7p699
md5
0348d90db7ebbbd3f496052d1c829d5d
sha1
a35dc86357f713c9358f2da513c636482451e1e3
sha256
2cfd5eaa5cf263b00ff4816b97a5257dde8b0c1d847fcaf43388d100d370d4b8
sha512
0493b74dbec6cf0d68be9f605d4056e1933ec4399120e5a5080c574959345502910bd391bab636617ee887b027ec72b9407806fe5e453a48ace02c93f1a2bb1a
ripemd-160
eeeb83e0fa39b6633770f8747d04a9bceb7d39cc
Diameter
25863642
Circumference
81253027.702276
Area
5.2537480497694E+14
Volume
9.0587372478289E+21
Surface area
2.1014992199078E+15
Circumference
81253027.702276
Perimeter
51727284
Area
167231994376041
Diagonal
18288356.644381
Surface area
1003391966256246
Volume
2.162614216744E+21
Space diagonal
22398571.006386
Perimeter
38795463
Area
72413577727594
Altitude
11199285.503193
Surface area
72413577727594
Volume
2.5486652962502E+20
Height
6096118.8814604