12561645 is an odd 8-digits composite number following 12561644
and preceding 12561646 . In scientific notation, it is written as 1.2561645 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6639360 positive integers (up to 12561645) that are relatively prime to 12561645.
12561645 has 16 divisors, whose sum is 20279232
The reverse of 12561645 is 54616521
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twelve million five hundred sixty-one thousand six hundred forty-five
Scientific notation
1.2561645 × 10^7
Engineering notation
1.2561645 × 10^6
Prime Factorization
3 × 5 × 113 × 7411
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12561645
Product of the distinct prime numbers
The prime factorization of 12561645 is 3 × 5 × 113 × 7411.
Since it has a total of 4 prime factors.
5 , 8 , 17 , 8 , 299 , 810 , 6321 , 6527 , 77326 , 83720 , 277636 , 636179 , 5022943 , 5984293 , 14805688 , 86692236 , 59990905 , 410414085 , 4505253074 , 2905868504
n×2
25123290
n×3
37684935
n×4
50246580
n×5
62808225
n÷2
6280822.5
n÷3
4187215
n÷3
3140411.25
n÷5
2512329
n2
157794925106025
n3
1.9821638319835E+21
n4
2.4899238389216E+28
n5
3.127753934157E+35
2 √n
3544.2411035368
3 √n
232.46032390373
4 √n
59.533529238042
5 √n
26.291133060619
1 , 3 , 5 , 15 , 113 , 339 , 565 , 1695 , 7411 , 22233 , 37055 , 111165 , 837443 , 2512329 , 4187215 , 12561645
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
-12561644
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 12561645 can be divided by 16 positive divisors.
The sum of these divisors (counting 12561645) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101111111010110011101101
3
Ternary
212122012100010
4
Quaternary
233322303231
5
Quinary
11203433040
6
Senary
1125123433
8
Octal
57726355
10
Decimal
12561645
12
Duodecimal
4259579
16
Hexadecimal
bfaced
20
Vigesimal
3ia425
36
Base36
7h8ml
md5
e5197be6138b6360427e11dce8b6c2ad
sha1
b07fcf4f7db662c16ee1ecb9c668e3fd8b90316a
sha256
e63021491ecf9e0874d17f2c865466bf96a27df30ffee37f9257688f9fa50656
sha512
a62c6133201a58dcd9ca74b5fee62401022a3898543899b9fd05a7fc48be9cfa8f80c374833ea7d9a017435c26d43cd40a32fdd7204b8dcfd564770790516d65
ripemd-160
083c10bd5f8e9175027ff6ca767af81d3d7ed896
Diameter
25123290
Circumference
78927143.298006
Area
4.9572737748684E+14
Volume
8.3028684436942E+21
Surface area
1.9829095099474E+15
Circumference
78927143.298006
Perimeter
50246580
Area
157794925106025
Diagonal
17764848.724716
Surface area
946769550636150
Volume
1.9821638319835E+21
Space diagonal
21757407.366644
Perimeter
37684935
Area
68327206865040
Altitude
10878703.683322
Surface area
68327206865040
Volume
2.3360024783637E+20
Height
5921616.2415721