12821809 is an odd 8-digits composite number following 12821808
and preceding 12821810 . In scientific notation, it is written as 1.2821809 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 9221760 positive integers (up to 12821809) that are relatively prime to 12821809.
12821809 has 16 divisors, whose sum is 17216640
The reverse of 12821809 is 90812821
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million eight hundred twenty-one thousand eight hundred nine
Scientific notation
1.2821809 × 10^7
Engineering notation
1.2821809 × 10^6
Prime Factorization
7 × 13 × 11 × 12809
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12821809
Product of the distinct prime numbers
The prime factorization of 12821809 is 7 × 13 × 11 × 12809.
Since it has a total of 4 prime factors.
6 , 6 , 27 , 83 , 770 , 387 , 3827 , 2142 , 18436 , 71728 , 700181 , 657426 , 3630039 , 3700378 , 68500535 , 76048418 , 897432610 , 285454064 , 9798718672 , 4305920232
n×2
25643618
n×3
38465427
n×4
51287236
n×5
64109045
n÷2
6410904.5
n÷3
4273936.3333333
n÷3
3205452.25
n÷5
2564361.8
n2
164398786032481
n3
2.1078898343403E+21
n4
2.7026960848953E+28
n5
3.4653452985576E+35
2 √n
3580.7553672375
3 √n
234.05419763921
4 √n
59.8394131592
5 √n
26.39914495156
1 , 7 , 11 , 13 , 77 , 91 , 143 , 1001 , 12809 , 89663 , 140899 , 166517 , 986293 , 1165619 , 1831687 , 12821809
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12821808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12821809 can be divided by 16 positive divisors.
The sum of these divisors (counting 12821809) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000111010010100110001
3
Ternary
220010102012211
4
Quaternary
300322110301
5
Quinary
11240244214
6
Senary
1134452121
8
Octal
60722461
10
Decimal
12821809
12
Duodecimal
4364041
16
Hexadecimal
c3a531
20
Vigesimal
402ea9
36
Base36
7mtdd
md5
7bb58cef83ee2ef954a89650da81fedd
sha1
e23d483924ee213dca89389c9043d83b9de602cc
sha256
f9fdbca74689e068770b9ebc859781f8c614ef932996f2fc30714d18110c981b
sha512
1afcbc71b01a69e7e02944ef64e863059f79420299c6a0630f03fb1093df2f74cd6377089dc9e23c3679fca70c597c97ec4e1e5e409df1e3489a5c1819d67bdf
ripemd-160
14c3b9342671cc809728de4edd97a262884e122e
Diameter
25643618
Circumference
80561801.920263
Area
5.1647401845872E+14
Volume
8.8295082908536E+21
Surface area
2.0658960738349E+15
Circumference
80561801.920263
Perimeter
51287236
Area
164398786032481
Diagonal
18132776.181957
Surface area
986392716194886
Volume
2.1078898343403E+21
Space diagonal
22208024.632944
Perimeter
38465427
Area
71186762527725
Altitude
11104012.316472
Surface area
71186762527725
Volume
2.4841719930937E+20
Height
6044258.7273191