128021237 is an odd 9-digits composite number following 128021236
and preceding 128021238 . In scientific notation, it is written as 1.28021237 × 10^8.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 119296000 positive integers (up to 128021237) that are relatively prime to 128021237.
128021237 has 8 divisors, whose sum is 136895832
The reverse of 128021237 is 732120821
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 26
Digital Root 8
Name
one hundred twenty-eight million twenty-one thousand two hundred thirty-seven
Scientific notation
1.28021237 × 10^8
Engineering notation
1.28021237 × 10^6
Prime Factorization
17 × 101 × 74561
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128021237
Product of the distinct prime numbers
The prime factorization of 128021237 is 17 × 101 × 74561.
Since it has a total of 3 prime factors.
1 , 4 , 89 , 88 , 95 , 660 , 3135 , 6624 , 74329 , 35671 , 13965 , 692723 , 4266054 , 9239254 , 61291013 , 56239540 , 520561884 , 778376914 , 9144426371 , 756714627
n×2
256042474
n×3
384063711
n×4
512084948
n×5
640106185
n÷2
64010618.5
n÷3
42673745.666667
n÷3
32005309.25
n÷5
25604247.4
n2
16389437123010169
n3
2.0981960142215E+24
n4
2.686136492091E+32
n5
3.4388251646834E+40
2 √n
11314.647011728
3 √n
503.99629023262
4 √n
106.37032956482
5 √n
41.826969902001
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
-128021236
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 128021237 can be divided by 8 positive divisors.
The sum of these divisors (counting 128021237) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101000010111001011110101
3
Ternary
22220220011010022
4
Quaternary
13220113023311
5
Quinary
230233134422
6
Senary
20411534525
8
Octal
750271365
10
Decimal
128021237
12
Duodecimal
36a5a445
16
Hexadecimal
7a172f5
20
Vigesimal
2002d1h
36
Base36
247xth
md5
06186feace0eaea6e51a7521d3fd5ee2
sha1
5a8e89b52904013142c14a307d378b2c44c90fcd
sha256
cc4e2fab22653ff5e27ce7d573453fb02ad908ec1d2e68e212bc6e78b29f9cff
sha512
91aaa9b5f34dba56e0d77e82c9cfbe31f06636220211be1023588d6a53cfa66b9505892873a960a45993d14904bbb4fffbe3873f132c3bcc514f44f8bf79e3d6
ripemd-160
1d08717bc889a731f4bd31f50b6a5442e701733d
Diameter
256042474
Circumference
804381155.32536
Area
5.1488935262121E+16
Volume
8.7889029120928E+24
Surface area
2.0595574104848E+17
Circumference
804381155.32536
Perimeter
512084948
Area
16389437123010169
Diagonal
181049369.63718
Surface area
98336622738061014
Volume
2.0981960142215E+24
Space diagonal
221739286.93182
Perimeter
384063711
Area
7.0968344511273E+15
Altitude
110869643.46591
Surface area
7.0968344511273E+15
Volume
2.4727477165243E+23
Height
60349789.87906