12987556 is an even 8-digits composite number following 12987555
and preceding 12987557 . In scientific notation, it is written as 1.2987556 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 6 positive divisors.
There are 6493776 positive integers (up to 12987556) that are relatively prime to 12987556.
12987556 has 6 divisors, whose sum is 22728230
The reverse of 12987556 is 65578921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twelve million nine hundred eighty-seven thousand five hundred fifty-six
Scientific notation
1.2987556 × 10^7
Engineering notation
1.2987556 × 10^6
Prime Factorization
2 × 2 × 3246889
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6493778
Product of the distinct prime numbers
The prime factorization of 12987556 is 2 × 2 × 3246889.
Since it has a total of 3 prime factors.
7 , 6 , 26 , 70 , 532 , 14 , 9916 , 8052 , 31030 , 33849 , 56598 , 26354 , 5846560 , 9367362 , 46091133 , 18563919 , 439561158 , 211533999 , 6985743559 , 8322253425
n×2
25975112
n×3
38962668
n×4
51950224
n×5
64937780
n÷2
6493778
n÷3
4329185.3333333
n÷3
3246889
n÷5
2597511.2
n2
168676610853136
n3
2.1906969293453E+21
n4
2.84517990489E+28
n5
3.6951933344834E+35
2 √n
3603.8251899891
3 √n
235.05841915665
4 √n
60.0318681201
5 √n
26.467046880499
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12987555
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12987556 can be divided by 6 positive divisors.
The sum of these divisors (counting 12987556) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110001100010110010100100
3
Ternary
220102211120121
4
Quaternary
301202302210
5
Quinary
11311100211
6
Senary
1142211324
8
Octal
61426244
10
Decimal
12987556
12
Duodecimal
4423b44
16
Hexadecimal
c62ca4
20
Vigesimal
4138hg
36
Base36
7qd9g
md5
bbf2ae267b904a4e56377faae87f3984
sha1
90ce6b7763accb6e6ecc73d5c729a764ba0ab441
sha256
9221bbfda4c3826c76b8689466f1cedcd57988d75d508ed57714b23ea575c610
sha512
91062ba302eda9fd489e747ad748e288c4515e573e7959beb376f8b0253c2d45fd55ba92c84bf52fd986c0dcd755f5393d257626afcb7cb22d7ea2410638358c
ripemd-160
01522e97a2b14f0937da88ac21ea0297c0478516
Diameter
25975112
Circumference
81603221.035372
Area
5.2991320148864E+14
Volume
9.1763698392973E+21
Surface area
2.1196528059545E+15
Circumference
81603221.035372
Perimeter
51950224
Area
168676610853136
Diagonal
18367177.83728
Surface area
1012059665118816
Volume
2.1906969293453E+21
Space diagonal
22495106.858146
Perimeter
38962668
Area
73039115011539
Altitude
11247553.429073
Surface area
73039115011539
Volume
2.581761090441E+20
Height
6122392.6124267