12821385 is an odd 8-digits composite number following 12821384
and preceding 12821386 . In scientific notation, it is written as 1.2821385 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 6805632 positive integers (up to 12821385) that are relatively prime to 12821385.
12821385 has 8 divisors, whose sum is 13741056
The reverse of 12821385 is 58312821
Previous prime number is 223
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twelve million eight hundred twenty-one thousand three hundred eighty-five
Scientific notation
1.2821385 × 10^7
Engineering notation
1.2821385 × 10^6
Prime Factorization
15 × 223 × 3833
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12821385
Product of the distinct prime numbers
The prime factorization of 12821385 is 15 × 223 × 3833.
Since it has a total of 3 prime factors.
5 , 8 , 68 , 76 , 488 , 259 , 4239 , 8510 , 32257 , 8138 , 613206 , 128595 , 7507511 , 7667578 , 46840994 , 81603953 , 94080113 , 808887258 , 8043532708 , 3000244062
n×2
25642770
n×3
38464155
n×4
51285540
n×5
64106925
n÷2
6410692.5
n÷3
4273795
n÷3
3205346.25
n÷5
2564277
n2
164387913318225
n3
2.1076807259996E+21
n4
2.702338604512E+28
n5
3.4647723648811E+35
2 √n
3580.696161363
3 √n
234.05161765813
4 √n
59.838918450813
5 √n
26.398970352398
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
-12821384
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 12821385 can be divided by 8 positive divisors.
The sum of these divisors (counting 12821385) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111010001110001001
3
Ternary
220010101122010
4
Quaternary
300322032021
5
Quinary
11240241020
6
Senary
1134450133
8
Octal
60721611
10
Decimal
12821385
12
Duodecimal
4363949
16
Hexadecimal
c3a389
20
Vigesimal
402d95
36
Base36
7mt1l
md5
99f18d3803499b2fbd1b3c666acae886
sha1
f1ba4517dfbc12456ff0d966db2303fb2a69132a
sha256
e78dfba19d93508838002f74c5ae8521f316414bbe105948b87c2ae77058b5e0
sha512
b99c89173800e890803d0229c2de5d9017de45ee30b1523ae912e58bcd3e1fc931f67a68e0f4e77f993124c73bf13fa59cefc7b0e40001e42a14de324561c044
ripemd-160
498c73dca9501132fb9274baf4f2b217086d2b47
Diameter
25642770
Circumference
80559137.849693
Area
5.1643986081949E+14
Volume
8.8286323798842E+21
Surface area
2.065759443278E+15
Circumference
80559137.849693
Perimeter
51285540
Area
164387913318225
Diagonal
18132176.555407
Surface area
986327479909350
Volume
2.1076807259996E+21
Space diagonal
22207290.243401
Perimeter
38464155
Area
71182054504349
Altitude
11103645.121701
Surface area
71182054504349
Volume
2.4839255565508E+20
Height
6044058.8518023