128538168 is an even 9-digits composite number following 128538167
and preceding 128538169 . In scientific notation, it is written as 1.28538168 × 10^8.
The sum of its digits is 42. It has a total of 6 prime factors and 32 positive divisors.
There are 37255680 positive integers (up to 128538168) that are relatively prime to 128538168.
128538168 has 32 divisors, whose sum is 259120800
The reverse of 128538168 is 861835821
Previous prime number is 23
Is Prime? no Number parity even Number length 9 Sum of Digits 42 Digital Root 6
Name
one hundred twenty-eight million five hundred thirty-eight thousand one hundred sixty-eight
Scientific notation
1.28538168 × 10^8
Engineering notation
1.28538168 × 10^6
Prime Factorization
2 × 2 × 2 × 33 × 23 × 21169
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
6 Total number of prime factors
rad Radical
32134542 Product of the distinct prime numbers
The prime factorization of 128538168 is 2 × 2 × 2 × 33 × 23 × 21169.
Since it has a total of 6 prime factors.
5 , 8 , 55 , 31 , 366 , 91 , 8239 , 5702 , 37122 , 74992 , 560778 , 693321 , 1679371 , 9059685 , 20422806 , 39951281 , 968083839 , 72483939 , 155046010 , 1661064579
n×2
257076336
n×3
385614504
n×4
514152672
n×5
642690840
n÷2
64269084
n÷3
42846056
n÷3
32134542
n÷5
25707633.6
n2
16522060632796224
n3
2.1237154053245E+24
n4
2.7297848755379E+32
n5
3.5088154693576E+40
2 √n11337.46744207
3 √n504.67373363837
4 √n106.47754430898
5 √n41.860693712546
1 , 2 , 4 , 8 , 23 , 33 , 46 , 66 , 92 , 132 , 184 , 264 , 759 , 1518 , 3036 , 6072 , 21169 , 42338 , 84676 , 169352 , 486887 , 698577 , 973774 , 1397154 , 1947548 , 2794308 , 3895096 , 5588616 , 16067271 , 32134542 , 64269084 , 128538168
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
-128538167 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 128538168 can be divided by 32 positive divisors.
The sum of these divisors (counting 128538168) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101010010101011000111000
3
Ternary
22221212102012220
4
Quaternary
13222111120320
5
Quinary
230401210133
6
Senary
20431004040
8
Octal
752253070
10
Decimal
128538168
12
Duodecimal
37069620
16
Hexadecimal
7a95638
20
Vigesimal
2037588
36
Base36
24j0oo
md5
3e125a45c32fad2602fd412ee451e41d
sha1
681aa0f8d2ab20f5e9e8793378e915be856b4844
sha256
b2f622e7038efb9a2933f8c2e8105e12dd5d1e30ca95aac6e1b9e23d8966f03b
sha512
e52076380759d4fbabe35c28d9433c34fb9511c443d6f706584a305e16efe679c6f8f11369f4b4d1a1f708f157b67e03685ee0ef96187147014e5e9b6a9c3cb0
ripemd-160
0c5765192f0d40f844f6b99d85932b66c6a40fd3
Diameter
257076336
Circumference
807629128.58938
Area
5.1905584306158E+16
Volume
8.8957982875774E+24
Surface area
2.0762233722463E+17
Circumference
807629128.58938
Perimeter
514152672
Area
16522060632796224
Diagonal
181780420.46819
Surface area
99132363796777344
Volume
2.1237154053245E+24
Space diagonal
222634637.68782
Perimeter
385614504
Area
7.1542621154342E+15
Altitude
111317318.84391
Surface area
7.1542621154342E+15
Volume
2.5028226073589E+23
Height
60593473.489397