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 3 prime factors and 8 positive divisors.
There are 9221760 positive integers (up to 12821809) that are relatively prime to 12821809.
12821809 has 8 divisors, whose sum is 14142240
The reverse of 12821809 is 90812821
Previous prime number is 91
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
11 × 91 × 12809
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12821809
Product of the distinct prime numbers
The prime factorization of 12821809 is 11 × 91 × 12809.
Since it has a total of 3 prime factors.
10 , 3 , 44 , 49 , 635 , 765 , 6813 , 475 , 20865 , 31182 , 632923 , 868088 , 6758864 , 735338 , 92796984 , 75308609 , 520978129 , 90612578 , 1806032037 , 4451038939
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
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
-12821808
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 12821809 can be divided by 8 positive divisors.
The sum of these divisors (counting 12821809) is 1, the average is 0.125.
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