12561644 is an even 8-digits composite number following 12561643
and preceding 12561645 . In scientific notation, it is written as 1.2561644 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 6270000 positive integers (up to 12561644) that are relatively prime to 12561644.
12561644 has 12 divisors, whose sum is 22020768
The reverse of 12561644 is 44616521
Previous prime number is 661
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twelve million five hundred sixty-one thousand six hundred forty-four
Scientific notation
1.2561644 × 10^7
Engineering notation
1.2561644 × 10^6
Prime Factorization
2 × 2 × 661 × 4751
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6280822
Product of the distinct prime numbers
The prime factorization of 12561644 is 2 × 2 × 661 × 4751.
Since it has a total of 4 prime factors.
5 , 9 , 11 , 83 , 282 , 604 , 7683 , 7462 , 89432 , 18193 , 121308 , 819225 , 8666326 , 1086622 , 86084965 , 15136282 , 186061289 , 755617637 , 9318214310 , 4884084035
n×2
25123288
n×3
37684932
n×4
50246576
n×5
62808220
n÷2
6280822
n÷3
4187214.6666667
n÷3
3140411
n÷5
2512328.8
n2
157794899982736
n3
1.9821633585987E+21
n4
2.4899230460562E+28
n5
3.1277526891953E+35
2 √n
3544.2409624629
3 √n
232.46031773521
4 √n
59.533528053215
5 √n
26.291132642026
1 , 2 , 4 , 661 , 1322 , 2644 , 4751 , 9502 , 19004 , 3140411 , 6280822 , 12561644
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12561643
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12561644 can be divided by 12 positive divisors.
The sum of these divisors (counting 12561644) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101111111010110011101100
3
Ternary
212122012100002
4
Quaternary
233322303230
5
Quinary
11203433034
6
Senary
1125123432
8
Octal
57726354
10
Decimal
12561644
12
Duodecimal
4259578
16
Hexadecimal
bfacec
20
Vigesimal
3ia424
36
Base36
7h8mk
md5
0f9e00a03169ef1ea3a2e9b1a5ca5ba8
sha1
1a935faff287a79097f3de16f8f40f554caf730e
sha256
ea0a8a157894c924a6e84889edd8cd6a221c7dfd398239bdcbe8390c9a9926f7
sha512
209a07bfb19203b0731a0812a91cf970cffe920d645e77e17549befa0bcf695b18b59874886a48982a88adc4b9ca0c630532c704e49e299d38c6779bbfee73e9
ripemd-160
44302282cfc0a959b50fb8b23379c20939d6b6fa
Diameter
25123288
Circumference
78927137.014821
Area
4.957272985597E+14
Volume
8.3028664607849E+21
Surface area
1.9829091942388E+15
Circumference
78927137.014821
Perimeter
50246576
Area
157794899982736
Diagonal
17764847.310503
Surface area
946769399896416
Volume
1.9821633585987E+21
Space diagonal
21757405.634593
Perimeter
37684932
Area
68327195986337
Altitude
10878702.817296
Surface area
68327195986337
Volume
2.3360019204744E+20
Height
5921615.7701675