12895981 is an odd 8-digits composite number following 12895980
and preceding 12895982 . In scientific notation, it is written as 1.2895981 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 10672368 positive integers (up to 12895981) that are relatively prime to 12895981.
12895981 has 8 divisors, whose sum is 15246720
The reverse of 12895981 is 18959821
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twelve million eight hundred ninety-five thousand nine hundred eighty-one
Scientific notation
1.2895981 × 10^7
Engineering notation
1.2895981 × 10^6
Prime Factorization
7 × 29 × 63527
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12895981
Product of the distinct prime numbers
The prime factorization of 12895981 is 7 × 29 × 63527.
Since it has a total of 3 prime factors.
9 , 3 , 40 , 19 , 388 , 106 , 5530 , 5679 , 81393 , 59881 , 808981 , 420835 , 8600 , 3500843 , 84344028 , 12461246 , 931398784 , 481816791 , 5721912092 , 2075710176
n×2
25791962
n×3
38687943
n×4
51583924
n×5
64479905
n÷2
6447990.5
n÷3
4298660.3333333
n÷3
3223995.25
n÷5
2579196.2
n2
166306325952361
n3
2.1446832196615E+21
n4
2.7657794051773E+28
n5
3.5667438659358E+35
2 √n
3591.0974645643
3 √n
234.50465148991
4 √n
59.925766282662
5 √n
26.42961744079
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12895980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12895981 can be divided by 8 positive divisors.
The sum of these divisors (counting 12895981) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001100011011101101
3
Ternary
220021011221221
4
Quaternary
301030123231
5
Quinary
11300132411
6
Senary
1140223341
8
Octal
61143355
10
Decimal
12895981
12
Duodecimal
439ab51
16
Hexadecimal
c4c6ed
20
Vigesimal
40bjj1
36
Base36
7oelp
md5
ab75d751a1807d63b559d0bc684dbbf0
sha1
5b8ff5155b78de4399c6f8ad6581f98c8988f9a8
sha256
f0c97d8fc3ca1ef23937950658389c3bd77f4aa064d074a3d2a7f921f973bde2
sha512
e083bc4ed88b977d1aff07e9b2d31e2fb7e33fc155c04f79deac4647e1076b6e7c436df337583400bc2e13f044e1f44a1b5b9bda946f7db7c5a1be5ccc0d3971
ripemd-160
b50cb30459168dbec277fbcc000e18f4a5fb3122
Diameter
25791962
Circumference
81027838.340867
Area
5.2246673185745E+14
Volume
8.9836280628876E+21
Surface area
2.0898669274298E+15
Circumference
81027838.340867
Perimeter
51583924
Area
166306325952361
Diagonal
18237671.230306
Surface area
997837955714166
Volume
2.1446832196615E+21
Space diagonal
22336494.305443
Perimeter
38687943
Area
72012751542400
Altitude
11168247.152721
Surface area
72012751542400
Volume
2.5275334135327E+20
Height
6079223.7434353