12821908 is an even 8-digits composite number following 12821907
and preceding 12821909 . In scientific notation, it is written as 1.2821908 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 5803200 positive integers (up to 12821908) that are relatively prime to 12821908.
12821908 has 24 divisors, whose sum is 24583104
The reverse of 12821908 is 80912821
Previous prime number is 311
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million eight hundred twenty-one thousand nine hundred eight
Scientific notation
1.2821908 × 10^7
Engineering notation
1.2821908 × 10^6
Prime Factorization
2 × 2 × 11 × 311 × 937
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6410954
Product of the distinct prime numbers
The prime factorization of 12821908 is 2 × 2 × 11 × 311 × 937.
Since it has a total of 5 prime factors.
1 , 5 , 81 , 49 , 985 , 343 , 7133 , 5215 , 32308 , 46700 , 501888 , 995015 , 5734702 , 8854775 , 32983624 , 55311875 , 76824218 , 99078388 , 8945584226 , 3500065101
n×2
25643816
n×3
38465724
n×4
51287632
n×5
64109540
n÷2
6410954
n÷3
4273969.3333333
n÷3
3205477
n÷5
2564381.6
n2
164401324760464
n3
2.1079386611568E+21
n4
2.7027795582996E+28
n5
3.4654790840798E+35
2 √n
3580.7691911096
3 √n
234.05480003226
4 √n
59.839528667175
5 √n
26.399185718152
1 , 2 , 4 , 11 , 22 , 44 , 311 , 622 , 937 , 1244 , 1874 , 3421 , 3748 , 6842 , 10307 , 13684 , 20614 , 41228 , 291407 , 582814 , 1165628 , 3205477 , 6410954 , 12821908
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12821907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12821908 can be divided by 24 positive divisors.
The sum of these divisors (counting 12821908) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
110000111010010110010100
3
Ternary
220010102100111
4
Quaternary
300322112110
5
Quinary
11240300113
6
Senary
1134452404
8
Octal
60722624
10
Decimal
12821908
12
Duodecimal
4364104
16
Hexadecimal
c3a594
20
Vigesimal
402ef8
36
Base36
7mtg4
md5
3df11b8910b52bf0c2f9e7e6b8738d78
sha1
f7dd5421f3b2c1d1356530b435d7b04e1e34f8aa
sha256
d71cc2eeeb4c42d8cc5118dc14d0c1e42b5ff88a556568224f64dd649bf53f49
sha512
1dad89d1d7fc3f3a2d666cbdb6aa91d0a9125c4e127f6147b1a531ca6b659ad92d37b2dbe9bc81cfbe3a1be88490984561e49e283e3bfc553ae0bbd1e1bce35a
ripemd-160
c117385b96512ae21114eb16a2a22ce830c64647
Diameter
25643816
Circumference
80562423.955608
Area
5.164819941079E+14
Volume
8.8297128161441E+21
Surface area
2.0659279764316E+15
Circumference
80562423.955608
Perimeter
51287632
Area
164401324760464
Diagonal
18132916.1891
Surface area
986407948562784
Volume
2.1079386611568E+21
Space diagonal
22208196.105974
Perimeter
38465724
Area
71187861829189
Altitude
11104098.052987
Surface area
71187861829189
Volume
2.4842295360488E+20
Height
6044305.3963667