12561689 is an odd 8-digits composite number following 12561688
and preceding 12561690 . In scientific notation, it is written as 1.2561689 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 10548720 positive integers (up to 12561689) that are relatively prime to 12561689.
12561689 has 16 divisors, whose sum is 14947200
The reverse of 12561689 is 98616521
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million five hundred sixty-one thousand six hundred eighty-nine
Scientific notation
1.2561689 × 10^7
Engineering notation
1.2561689 × 10^6
Prime Factorization
7 × 49 × 53 × 691
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12561689
Product of the distinct prime numbers
The prime factorization of 12561689 is 7 × 49 × 53 × 691.
Since it has a total of 4 prime factors.
2 , 1 , 49 , 83 , 219 , 616 , 3696 , 1053 , 60364 , 65543 , 280308 , 639969 , 6153808 , 1748336 , 36019051 , 11149729 , 712282303 , 27042317 , 6010409581 , 8235561924
n×2
25123378
n×3
37685067
n×4
50246756
n×5
62808445
n÷2
6280844.5
n÷3
4187229.6666667
n÷3
3140422.25
n÷5
2512337.8
n2
157796030532721
n3
1.9821846609865E+21
n4
2.4899587251883E+28
n5
3.1278087128652E+35
2 √n
3544.2473107841
3 √n
232.46059531835
4 √n
59.533581370383
5 √n
26.29115147872
1 , 7 , 49 , 53 , 343 , 371 , 691 , 2597 , 4837 , 18179 , 33859 , 36623 , 237013 , 256361 , 1794527 , 12561689
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12561688
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12561689 can be divided by 16 positive divisors.
The sum of these divisors (counting 12561689) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111111010110100011001
3
Ternary
212122012101202
4
Quaternary
233322310121
5
Quinary
11203433224
6
Senary
1125123545
8
Octal
57726431
10
Decimal
12561689
12
Duodecimal
42595b5
16
Hexadecimal
bfad19
20
Vigesimal
3ia449
36
Base36
7h8nt
md5
bb40fef6e3da4e9e082f26714bb91ef7
sha1
ac62410db34e4c0206ec1ab861cbefa8a20871ee
sha256
ace825b22267eee6ea4ec9b2f91b2f2ded34ee1d7e1914f5b9101ba5a57f255e
sha512
e08e1d1d25dfe1f0c21be37d1eecdcf2f539c6c60424f6aadf2fab3ccccc60d4c958e41f13b3b99011e1dd2f569a745f140e1022d820a6c0c30f68b7036fb29b
ripemd-160
6a023b915014f2f9134a716344455c938ab0bbe4
Diameter
25123378
Circumference
78927419.758159
Area
4.9573085028723E+14
Volume
8.3029556920183E+21
Surface area
1.9829234011489E+15
Circumference
78927419.758159
Perimeter
50246756
Area
157796030532721
Diagonal
17764910.950113
Surface area
946776183196326
Volume
1.9821846609865E+21
Space diagonal
21757483.576879
Perimeter
37685067
Area
68327685528841
Altitude
10878741.78844
Surface area
68327685528841
Volume
2.3360270255792E+20
Height
5921636.983371