12981395 is an odd 8-digits composite number following 12981394
and preceding 12981396 . In scientific notation, it is written as 1.2981395 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 8901504 positive integers (up to 12981395) that are relatively prime to 12981395.
12981395 has 8 divisors, whose sum is 17803104
The reverse of 12981395 is 59318921
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million nine hundred eighty-one thousand three hundred ninety-five
Scientific notation
1.2981395 × 10^7
Engineering notation
1.2981395 × 10^6
Prime Factorization
5 × 7 × 370897
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12981395
Product of the distinct prime numbers
The prime factorization of 12981395 is 5 × 7 × 370897.
Since it has a total of 3 prime factors.
6 , 5 , 75 , 1 , 508 , 178 , 5342 , 4888 , 60055 , 57890 , 219021 , 169834 , 1950724 , 8076654 , 51350273 , 9688016 , 334808646 , 830004340 , 1647070490 , 116867279
n×2
25962790
n×3
38944185
n×4
51925580
n×5
64906975
n÷2
6490697.5
n÷3
4327131.6666667
n÷3
3245348.75
n÷5
2596279
n2
168516616146025
n3
2.1875807582549E+21
n4
2.8397849917307E+28
n5
3.6864370692728E+35
2 √n
3602.9703024033
3 √n
235.02124449557
4 √n
60.024747416406
5 √n
26.46453533135
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
-12981394
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 12981395 can be divided by 8 positive divisors.
The sum of these divisors (counting 12981395) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100001010010010011
3
Ternary
220102112010102
4
Quaternary
301201102103
5
Quinary
11310401040
6
Senary
1142123015
8
Octal
61412223
10
Decimal
12981395
12
Duodecimal
442046b
16
Hexadecimal
c61493
20
Vigesimal
412d9f
36
Base36
7q8ib
md5
d05c0400f1cf3a115be8c0488cd5dfe9
sha1
16a91dfc9d5894c55159dc13595e46dba30f08bd
sha256
9f2f139bb8bd93e15e05d1f044e6c85095fe78ef0fb089fba11577e151a82b86
sha512
d531d368e7b388409bd0b512a7d96103438b45ea9346fe2ef813ae63c4c23c050d26ba790007a6138d636a9368e8dc37d818b333254e2b82e6a58b8b02bee12d
ripemd-160
7e162ba3d9394b3faaae1ffa9b05b7205d51c577
Diameter
25962790
Circumference
81564510.330695
Area
5.2941056329216E+14
Volume
9.1633168523574E+21
Surface area
2.1176422531687E+15
Circumference
81564510.330695
Perimeter
51925580
Area
168516616146025
Diagonal
18358464.867522
Surface area
1011099696876150
Volume
2.1875807582549E+21
Space diagonal
22484435.693121
Perimeter
38944185
Area
72969835271124
Altitude
11242217.84656
Surface area
72969835271124
Volume
2.5780886475921E+20
Height
6119488.2891741