12821909 is an odd 8-digits composite number following 12821908
and preceding 12821910 . In scientific notation, it is written as 1.2821909 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 12789216 positive integers (up to 12821909) that are relatively prime to 12821909.
12821909 has 4 divisors, whose sum is 12854604
The reverse of 12821909 is 90912821
Previous prime number is 32297
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twelve million eight hundred twenty-one thousand nine hundred nine
Scientific notation
1.2821909 × 10^7
Engineering notation
1.2821909 × 10^6
Prime Factorization
32297 × 397
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12821909
Product of the distinct prime numbers
The prime factorization of 12821909 is 32297 × 397.
Since it has a total of 2 prime factors.
9 , 4 , 6 , 21 , 584 , 115 , 7355 , 7468 , 59238 , 83723 , 448903 , 978659 , 2800450 , 3816830 , 18679235 , 79637273 , 461124489 , 653946795 , 4454476964 , 419098798
n×2
25643818
n×3
38465727
n×4
51287636
n×5
64109545
n÷2
6410954.5
n÷3
4273969.6666667
n÷3
3205477.25
n÷5
2564381.8
n2
164401350404281
n3
2.1079391543608E+21
n4
2.7027804014751E+28
n5
3.4654804354697E+35
2 √n
3580.7693307444
3 √n
234.05480611702
4 √n
59.839529833919
5 √n
26.399186129934
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
-12821908
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 12821909 can be divided by 4 positive divisors.
The sum of these divisors (counting 12821909) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111010010110010101
3
Ternary
220010102100112
4
Quaternary
300322112111
5
Quinary
11240300114
6
Senary
1134452405
8
Octal
60722625
10
Decimal
12821909
12
Duodecimal
4364105
16
Hexadecimal
c3a595
20
Vigesimal
402ef9
36
Base36
7mtg5
md5
dc888607617d013b8035b0a7da3d07af
sha1
95e07b91985864ac89b9cd194ec4bc880078c852
sha256
76aab101dcc0addd1fa67386d2e903cc7eea18d2c2f51bbbfdb6ba0a725912d9
sha512
0b0f6cc8692a8bcdd30fc71d4078da0bd7957e03863082b7348b7cffac0c483de0ac0aa6dbaa735c35e89930832d587b80caa3711fc627b2794fa242a8960ed5
ripemd-160
b5c4d89a15f9963696f31a0adf6c53efa20aaa33
Diameter
25643818
Circumference
80562430.238794
Area
5.1648207467033E+14
Volume
8.8297148820722E+21
Surface area
2.0659282986813E+15
Circumference
80562430.238794
Perimeter
51287636
Area
164401350404281
Diagonal
18132917.603314
Surface area
986408102425686
Volume
2.1079391543608E+21
Space diagonal
22208197.838025
Perimeter
38465727
Area
71187872933287
Altitude
11104098.919012
Surface area
71187872933287
Volume
2.4842301172953E+20
Height
6044305.8677712