128742495 is an odd 9-digits composite number following 128742494
and preceding 128742496 . In scientific notation, it is written as 1.28742495 × 10^8.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 58423680 positive integers (up to 128742495) that are relatively prime to 128742495.
128742495 has 32 divisors, whose sum is 237135360
The reverse of 128742495 is 594247821
Previous prime number is 139
Is Prime? no Number parity odd Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred twenty-eight million seven hundred forty-two thousand four hundred ninety-five
Scientific notation
1.28742495 × 10^8
Engineering notation
1.28742495 × 10^6
Prime Factorization
7 × 3 × 5 × 139 × 8821
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
128742495 Product of the distinct prime numbers
The prime factorization of 128742495 is 7 × 3 × 5 × 139 × 8821.
Since it has a total of 5 prime factors.
4 , 4 , 32 , 55 , 987 , 178 , 3063 , 9318 , 10682 , 36959 , 244655 , 23217 , 6879503 , 4115504 , 57185984 , 51985890 , 691905723 , 978873325 , 9133019136 , 8762661945
n×2
257484990
n×3
386227485
n×4
514969980
n×5
643712475
n÷2
64371247.5
n÷3
42914165
n÷3
32185623.75
n÷5
25748499
n2
16574630018825025
n3
2.1338592223254E+24
n4
2.7471836026094E+32
n5
3.5367927122302E+40
2 √n11346.475003277
3 √n504.94100542752
4 √n106.51983384928
5 √n41.873993787839
1 , 3 , 5 , 7 , 15 , 21 , 35 , 105 , 139 , 417 , 695 , 973 , 2085 , 2919 , 4865 , 8821 , 14595 , 26463 , 44105 , 61747 , 132315 , 185241 , 308735 , 926205 , 1226119 , 3678357 , 6130595 , 8582833 , 18391785 , 25748499 , 42914165 , 128742495
32 divisors
τ Total Divisors
32 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128742494 Sum of the proper positive divisors of n
A Arithmetic Mean
0.03125 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
32 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128742495 can be divided by 32 positive divisors.
The sum of these divisors (counting 128742495) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101011000111010001011111
3
Ternary
22222020210111120
4
Quaternary
13223013101133
5
Quinary
230424224440
6
Senary
20435222023
8
Octal
753072137
10
Decimal
128742495
12
Duodecimal
37147913
16
Hexadecimal
7ac745f
20
Vigesimal
204cg4f
36
Base36
24necf
md5
751f8ab4c5fb38f699e643c3d4185db6
sha1
2970a85c5c341a8e10b7feb17db8f2adfb2fd897
sha256
a8726fb5b86ee57201b3c8c316694042ab6b1ea3d84d9241b720bcb11e918d27
sha512
234c4582c6263b7cc2daaf3ce51aa140bd0bc7fe8efe18ff0a1f067e21faf5066f5e22c7497b7b85f6f4b6f0c257a85c98bc2363266b780ade9cc6723f47466a
ripemd-160
d3bbc0270b03eb15ed3b7e0d185b721b9023bca4
Diameter
257484990
Circumference
808912952.99364
Area
5.207073590311E+16
Volume
8.9382886088699E+24
Surface area
2.0828294361244E+17
Circumference
808912952.99364
Perimeter
514969980
Area
16574630018825025
Diagonal
182069382.48275
Surface area
99447780112950150
Volume
2.1338592223254E+24
Space diagonal
222988542.43318
Perimeter
386227485
Area
7.1770253273153E+15
Altitude
111494271.21659
Surface area
7.1770253273153E+15
Volume
2.5147772103396E+23
Height
60689794.160917