12905428 is an even 8-digits composite number following 12905427
and preceding 12905429 . In scientific notation, it is written as 1.2905428 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 6452712 positive integers (up to 12905428) that are relatively prime to 12905428.
12905428 has 6 divisors, whose sum is 22584506
The reverse of 12905428 is 82450921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twelve million nine hundred five thousand four hundred twenty-eight
Scientific notation
1.2905428 × 10^7
Engineering notation
1.2905428 × 10^6
Prime Factorization
2 × 2 × 3226357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6452714
Product of the distinct prime numbers
The prime factorization of 12905428 is 2 × 2 × 3226357.
Since it has a total of 3 prime factors.
7 , 2 , 12 , 20 , 605 , 968 , 7785 , 4779 , 22933 , 10432 , 745361 , 378589 , 3540756 , 3089967 , 60393641 , 9851570 , 332645129 , 210468122 , 7728975633 , 6991975895
n×2
25810856
n×3
38716284
n×4
51621712
n×5
64527140
n÷2
6452714
n÷3
4301809.3333333
n÷3
3226357
n÷5
2581085.6
n2
166550071863184
n3
2.1493999608251E+21
n4
2.7738926437632E+28
n5
3.5798271793815E+35
2 √n
3592.4125598266
3 √n
234.5618999382
4 √n
59.936737981197
5 √n
26.433488530028
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
-12905427
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 12905428 can be divided by 6 positive divisors.
The sum of these divisors (counting 12905428) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
110001001110101111010100
3
Ternary
220021122220211
4
Quaternary
301032233110
5
Quinary
11300433203
6
Senary
1140335204
8
Octal
61165724
10
Decimal
12905428
12
Duodecimal
43a4504
16
Hexadecimal
c4ebd4
20
Vigesimal
40d3b8
36
Base36
7olw4
md5
5f7db62ad2bbe71dfeffd53b49974bbf
sha1
6ad220610c0d6d55768b01b01eb9fe11a76043d5
sha256
bf7d84fd1330e9e68e6b4a3dd7bb3d0d54134949f9314b56abd33ea58275528e
sha512
57c3050135bbdf816cae95105f497b3c2e7b4778cbaff73e40f3bf2e9b38f453ab0ed53f8ae3a8276f55349aa343e663f7112433027df9f90848aa654cb7d16f
ripemd-160
880247dde6b9f5c17fdfa1bf8c05bc4ab15f21a8
Diameter
25810856
Circumference
81087195.592464
Area
5.2323248222023E+14
Volume
9.0033855020726E+21
Surface area
2.0929299288809E+15
Circumference
81087195.592464
Perimeter
51621712
Area
166550071863184
Diagonal
18251031.305829
Surface area
999300431179104
Volume
2.1493999608251E+21
Space diagonal
22352856.989422
Perimeter
38716284
Area
72118296617821
Altitude
11176428.494711
Surface area
72118296617821
Volume
2.5330921463026E+20
Height
6083677.1019432