12912389 is an odd 8-digits composite number following 12912388
and preceding 12912390 . In scientific notation, it is written as 1.2912389 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 10959696 positive integers (up to 12912389) that are relatively prime to 12912389.
12912389 has 8 divisors, whose sum is 14901120
The reverse of 12912389 is 98321921
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twelve million nine hundred twelve thousand three hundred eighty-nine
Scientific notation
1.2912389 × 10^7
Engineering notation
1.2912389 × 10^6
Prime Factorization
7 × 103 × 17909
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12912389
Product of the distinct prime numbers
The prime factorization of 12912389 is 7 × 103 × 17909.
Since it has a total of 3 prime factors.
2 , 1 , 70 , 15 , 238 , 119 , 5293 , 9407 , 52596 , 83781 , 268194 , 289416 , 1491040 , 5385240 , 62303712 , 88891885 , 527285370 , 960643771 , 7283790756 , 6076140422
n×2
25824778
n×3
38737167
n×4
51649556
n×5
64561945
n÷2
6456194.5
n÷3
4304129.6666667
n÷3
3228097.25
n÷5
2582477.8
n2
166729789687321
n3
2.1528799023309E+21
n4
2.7798822769178E+28
n5
3.5894921333769E+35
2 √n
3593.3812767364
3 √n
234.6040654494
4 √n
59.944818597911
5 √n
26.436339482774
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
-12912388
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 12912389 can be divided by 8 positive divisors.
The sum of these divisors (counting 12912389) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001010000011100000101
3
Ternary
220022000110122
4
Quaternary
301100130011
5
Quinary
11301144024
6
Senary
1140431325
8
Octal
61203405
10
Decimal
12912389
12
Duodecimal
43a8545
16
Hexadecimal
c50705
20
Vigesimal
40e0j9
36
Base36
7or9h
md5
39af38611ec042257ebcf689e7e88b2e
sha1
b85ec32c5715f4c0ca761495bf5906b6fe6f8baa
sha256
66b270f80a3f7f9e25487021c03b96fb0566bd4771cf80afd13416c899737053
sha512
d7f0c0e4057edc3ff96fb3a6dd63a3a3c108acb81b6c994ff56706339cd44973ed3a993e6e156460a6b0eb25d42983cae32206ca34d9bdeefb758f7e77286d53
ripemd-160
6080478c5dbbbace3a8f4d9d14d5f04595a82ebb
Diameter
25824778
Circumference
81130932.845387
Area
5.2379708241626E+14
Volume
9.0179622469651E+21
Surface area
2.095188329665E+15
Circumference
81130932.845387
Perimeter
51649556
Area
166729789687321
Diagonal
18260875.646437
Surface area
1000378738123926
Volume
2.1528799023309E+21
Space diagonal
22364913.795093
Perimeter
38737167
Area
72196116718428
Altitude
11182456.897547
Surface area
72196116718428
Volume
2.5371932966973E+20
Height
6086958.5488124