12805561 is an odd 8-digits composite number following 12805560
and preceding 12805562 . In scientific notation, it is written as 1.2805561 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 12798324 positive integers (up to 12805561) that are relatively prime to 12805561.
12805561 has 4 divisors, whose sum is 12812800
The reverse of 12805561 is 16550821
Previous prime number is 4159
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twelve million eight hundred five thousand five hundred sixty-one
Scientific notation
1.2805561 × 10^7
Engineering notation
1.2805561 × 10^6
Prime Factorization
4159 × 3079
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12805561
Product of the distinct prime numbers
The prime factorization of 12805561 is 4159 × 3079.
Since it has a total of 2 prime factors.
8 , 5 , 89 , 68 , 348 , 801 , 6826 , 5223 , 33611 , 49618 , 518413 , 42474 , 562056 , 4203892 , 25557981 , 38667677 , 19215521 , 771293187 , 3095942543 , 7296490077
n×2
25611122
n×3
38416683
n×4
51222244
n×5
64027805
n÷2
6402780.5
n÷3
4268520.3333333
n÷3
3201390.25
n÷5
2561112.2
n2
163982392524721
n3
2.0998865304013E+21
n4
2.6890225058132E+28
n5
3.4434441728563E+35
2 √n
3578.4858529831
3 √n
233.95529011621
4 √n
59.820446780203
5 √n
26.392450874413
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
-12805560
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 12805561 can be divided by 4 positive divisors.
The sum of these divisors (counting 12805561) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000110110010110111001
3
Ternary
220002120221001
4
Quaternary
300312112321
5
Quinary
11234234221
6
Senary
1134245001
8
Octal
60662671
10
Decimal
12805561
12
Duodecimal
4356761
16
Hexadecimal
c365b9
20
Vigesimal
400di1
36
Base36
7mgu1
md5
3ff5d9db7ad02e29dd67863dc4aa873b
sha1
d4ee95d55edbefd7a277747546fc7ab99c6762b5
sha256
37c9d33619b5cf1d39759a878190dc236d3b87cd7f793b1a03a1c293bd6810f5
sha512
dd9b4cde1be8be78ab5d96fac07cccae0dbd32a92cd4d908e2f7f6b7f4c912b58a2854008fae59690926f05ef6f74274736b03db3d40d378a15d264577710d2a
ripemd-160
94cafd8766d2cc989f7875747b78964d7f0ace12
Diameter
25611122
Circumference
80459712.725392
Area
5.1516587967374E+14
Volume
8.7959841297077E+21
Surface area
2.060663518695E+15
Circumference
80459712.725392
Perimeter
51222244
Area
163982392524721
Diagonal
18109798.039996
Surface area
983894355148326
Volume
2.0998865304013E+21
Space diagonal
22179882.271423
Perimeter
38416683
Area
71006458849880
Altitude
11089941.135711
Surface area
71006458849880
Volume
2.4747400089484E+20
Height
6036599.3466653