12909728 is an even 8-digits composite number following 12909727
and preceding 12909729 . In scientific notation, it is written as 1.2909728 × 10^7.
The sum of its digits is 38. It has a total of 7 prime factors and 24 positive divisors.
There are 5958144 positive integers (up to 12909728) that are relatively prime to 12909728.
12909728 has 24 divisors, whose sum is 27371988
The reverse of 12909728 is 82790921
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million nine hundred nine thousand seven hundred twenty-eight
Scientific notation
1.2909728 × 10^7
Engineering notation
1.2909728 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 13 × 31033
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
806858
Product of the distinct prime numbers
The prime factorization of 12909728 is 2 × 2 × 2 × 2 × 2 × 13 × 31033.
Since it has a total of 7 prime factors.
10 , 10 , 70 , 86 , 237 , 437 , 9895 , 2208 , 27467 , 47235 , 877654 , 183812 , 9565837 , 6053680 , 18408416 , 13369420 , 829546578 , 480761 , 8861784574 , 1385337653
n×2
25819456
n×3
38729184
n×4
51638912
n×5
64548640
n÷2
6454864
n÷3
4303242.6666667
n÷3
3227432
n÷5
2581945.6
n2
166661077033984
n3
2.1515491726958E+21
n4
2.7775914598128E+28
n5
3.5857950241306E+35
2 √n
3593.0109935818
3 √n
234.58794851686
4 √n
59.941729984893
5 √n
26.435249786685
1 , 2 , 4 , 8 , 13 , 16 , 26 , 32 , 52 , 104 , 208 , 416 , 31033 , 62066 , 124132 , 248264 , 403429 , 496528 , 806858 , 993056 , 1613716 , 3227432 , 6454864 , 12909728
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12909727
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12909728 can be divided by 24 positive divisors.
The sum of these divisors (counting 12909728) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
110001001111110010100000
3
Ternary
220021212211002
4
Quaternary
301033302200
5
Quinary
11301102403
6
Senary
1140411132
8
Octal
61176240
10
Decimal
12909728
12
Duodecimal
43a6aa8
16
Hexadecimal
c4fca0
20
Vigesimal
40de68
36
Base36
7op7k
md5
cc83509a4f47b37d12c7b9598d49bfed
sha1
5d1caa05a988d398cd820d86e611dc00cfb6debc
sha256
6a977a846d141f0a22ec1aef1c1a52cd609d303c126981e95f6dd06ba285e12e
sha512
cd2fb4240617fb5e96ddac4a8ed9cb3849bb04a49cdb8ed5a296a08930bdd1e986c4b6e6c124e53e0f49322bea1a47ffd28456f8fede0d36b51c41a18cf4b1c2
ripemd-160
866076ae61894c8ef1772015c7eef65c047a7507
Diameter
25819456
Circumference
81114213.289285
Area
5.2358121524933E+14
Volume
9.0123880997043E+21
Surface area
2.0943248609973E+15
Circumference
81114213.289285
Perimeter
51638912
Area
166661077033984
Diagonal
18257112.424148
Surface area
999966462203904
Volume
2.1515491726958E+21
Space diagonal
22360304.807895
Perimeter
38729184
Area
72166363266753
Altitude
11180152.403947
Surface area
72166363266753
Volume
2.5356250167825E+20
Height
6085704.1413826