12888945 is an odd 8-digits composite number following 12888944
and preceding 12888946 . In scientific notation, it is written as 1.2888945 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 6874080 positive integers (up to 12888945) that are relatively prime to 12888945.
12888945 has 8 divisors, whose sum is 17185320
The reverse of 12888945 is 54988821
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million eight hundred eighty-eight thousand nine hundred forty-five
Scientific notation
1.2888945 × 10^7
Engineering notation
1.2888945 × 10^6
Prime Factorization
5 × 9 × 286421
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12888945
Product of the distinct prime numbers
The prime factorization of 12888945 is 5 × 9 × 286421.
Since it has a total of 3 prime factors.
3 , 7 , 20 , 67 , 845 , 832 , 65 , 8109 , 58150 , 37947 , 886588 , 293266 , 8476959 , 1849123 , 34551240 , 82652116 , 962275493 , 445882154 , 3118582767 , 6669719848
n×2
25777890
n×3
38666835
n×4
51555780
n×5
64444725
n÷2
6444472.5
n÷3
4296315
n÷3
3222236.25
n÷5
2577789
n2
166124903213025
n3
2.141174740643E+21
n4
2.7597483467537E+28
n5
3.5570244655149E+35
2 √n
3590.1176860933
3 √n
234.46199543832
4 √n
59.917590790129
5 √n
26.426732830693
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
-12888944
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 12888945 can be divided by 8 positive divisors.
The sum of these divisors (counting 12888945) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001001010101101110001
3
Ternary
220020211022100
4
Quaternary
301022231301
5
Quinary
11244421240
6
Senary
1140131013
8
Octal
61125561
10
Decimal
12888945
12
Duodecimal
4396a69
16
Hexadecimal
c4ab71
20
Vigesimal
40b275
36
Base36
7o969
md5
bb9d6a30e205ea6253fec24b425bc0eb
sha1
3e24f51a51c5f1c2d81b706c9669b97f2b0e4b3a
sha256
be574013a210bc1606b3e105b9d6e2611ae87a42a41654e09b563d42d1bc079d
sha512
20ce61461dc96ebf3e368697c65ca0390e67b15010f78a45ff5e7993bc53fb0203dc46ae821434418ded8835e089629c21fa863c6cc7b39b36ed5aafe16427ed
ripemd-160
8af9da2e1d43ff57f857737de6e2bf79c14a6e2a
Diameter
25777890
Circumference
80983629.849046
Area
5.2189677551235E+14
Volume
8.9689317803414E+21
Surface area
2.0875871020494E+15
Circumference
80983629.849046
Perimeter
51555780
Area
166124903213025
Diagonal
18227720.823681
Surface area
996749419278150
Volume
2.141174740643E+21
Space diagonal
22324307.595961
Perimeter
38666835
Area
71934193191855
Altitude
11162153.79798
Surface area
71934193191855
Volume
2.5233986313567E+20
Height
6075906.941227