12821665 is an odd 8-digits composite number following 12821664
and preceding 12821666 . In scientific notation, it is written as 1.2821665 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 10257328 positive integers (up to 12821665) that are relatively prime to 12821665.
12821665 has 4 divisors, whose sum is 15386004
The reverse of 12821665 is 56612821
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million eight hundred twenty-one thousand six hundred sixty-five
Scientific notation
1.2821665 × 10^7
Engineering notation
1.2821665 × 10^6
Prime Factorization
5 × 2564333
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12821665
Product of the distinct prime numbers
The prime factorization of 12821665 is 5 × 2564333.
Since it has a total of 2 prime factors.
9 , 10 , 9 , 63 , 477 , 919 , 1636 , 4073 , 64080 , 99838 , 224159 , 1306 , 6604944 , 3612890 , 98520045 , 87664192 , 136074805 , 404036003 , 9730236648 , 1347510760
n×2
25643330
n×3
38464995
n×4
51286660
n×5
64108325
n÷2
6410832.5
n÷3
4273888.3333333
n÷3
3205416.25
n÷5
2564333
n2
164395093372225
n3
2.1078188148624E+21
n4
2.7025746724863E+28
n5
3.4651507088104E+35
2 √n
3580.7352596918
3 √n
234.0533214256
4 √n
59.839245146407
5 √n
26.399085654249
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
-12821664
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 12821665 can be divided by 4 positive divisors.
The sum of these divisors (counting 12821665) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000111010010010100001
3
Ternary
220010102000111
4
Quaternary
300322102201
5
Quinary
11240243130
6
Senary
1134451321
8
Octal
60722241
10
Decimal
12821665
12
Duodecimal
4363b41
16
Hexadecimal
c3a4a1
20
Vigesimal
402e35
36
Base36
7mt9d
md5
7767c2014f18f6e2f09136f02327be88
sha1
1f5a039b9d9ebcc5efdaf29adeeb5ae7b13572c5
sha256
6338f4ba744c4a2d9a357cf956a6c44f29a309b4ae93e2e3245c2014c6dbff06
sha512
320bb82cd8dbad517372ba88f207a9235dcbf9d521a9a5a3d95098e8e4b2c66aefbb7686a37cf94be35836673e18a90ac2a4266081af35a799415722facfea16
ripemd-160
fa4656ad2f021efa6c9f51eb74aa0f284cfe781d
Diameter
25643330
Circumference
80560897.141579
Area
5.1646241762439E+14
Volume
8.82921080516E+21
Surface area
2.0658496704976E+15
Circumference
80560897.141579
Perimeter
51286660
Area
164395093372225
Diagonal
18132572.535204
Surface area
986370560233350
Volume
2.1078188148624E+21
Space diagonal
22207775.217628
Perimeter
38464995
Area
71185163558931
Altitude
11103887.608814
Surface area
71185163558931
Volume
2.4840882958363E+20
Height
6044190.8450681