12821645 is an odd 8-digits composite number following 12821644
and preceding 12821646 . In scientific notation, it is written as 1.2821645 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 10257312 positive integers (up to 12821645) that are relatively prime to 12821645.
12821645 has 4 divisors, whose sum is 15385980
The reverse of 12821645 is 54612821
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twelve million eight hundred twenty-one thousand six hundred forty-five
Scientific notation
1.2821645 × 10^7
Engineering notation
1.2821645 × 10^6
Prime Factorization
5 × 2564329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12821645
Product of the distinct prime numbers
The prime factorization of 12821645 is 5 × 2564329.
Since it has a total of 2 prime factors.
3 , 1 , 8 , 29 , 879 , 790 , 1490 , 5456 , 42758 , 21948 , 448539 , 265309 , 3129320 , 625361 , 58359965 , 90062850 , 513303024 , 294662663 , 6127826404 , 3128558583
n×2
25643290
n×3
38464935
n×4
51286580
n×5
64108225
n÷2
6410822.5
n÷3
4273881.6666667
n÷3
3205411.25
n÷5
2564329
n2
164394580506025
n3
2.1078089511722E+21
n4
2.7025578099752E+28
n5
3.4651236831479E+35
2 √n
3580.7324669682
3 √n
234.05319972874
4 √n
59.839221811185
5 √n
26.39907741847
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
-12821644
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 12821645 can be divided by 4 positive divisors.
The sum of these divisors (counting 12821645) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111010010010001101
3
Ternary
220010101222202
4
Quaternary
300322102031
5
Quinary
11240243040
6
Senary
1134451245
8
Octal
60722215
10
Decimal
12821645
12
Duodecimal
4363b25
16
Hexadecimal
c3a48d
20
Vigesimal
402e25
36
Base36
7mt8t
md5
96291a2e3f9b9ec7e8d83f8032042c3d
sha1
9bd33bd7954d0de09626392e5805213b82bc3a8a
sha256
1503b7a09a7d9aa46398268469468dc783e22cabf9e311596d3abc6e33719189
sha512
42fb92a0292ca9062ec196e473025c728087e5997ba6c9296da35e823170d768e2a14cfbbc45305dd183a25054bcb249ee1bbc69458ba3c085da7d9cc67da2d2
ripemd-160
34923e4041d98eedf302a558125607d6c8e8a002
Diameter
25643290
Circumference
80560771.477873
Area
5.164608064077E+14
Volume
8.8291694882311E+21
Surface area
2.0658432256308E+15
Circumference
80560771.477873
Perimeter
51286580
Area
164394580506025
Diagonal
18132544.250933
Surface area
986367483036150
Volume
2.1078089511722E+21
Space diagonal
22207740.576611
Perimeter
38464935
Area
71184941481352
Altitude
11103870.288306
Surface area
71184941481352
Volume
2.4840766713659E+20
Height
6044181.4169777