128123724 is an even 9-digits composite number following 128123723
and preceding 128123725 . In scientific notation, it is written as 1.28123724 × 10^8.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 42707904 positive integers (up to 128123724) that are relatively prime to 128123724.
128123724 has 12 divisors, whose sum is 298955384
The reverse of 128123724 is 427321821
Previous prime number is 3
Is Prime? no Number parity even Number length 9 Sum of Digits 30 Digital Root 3
Name
one hundred twenty-eight million one hundred twenty-three thousand seven hundred twenty-four
Scientific notation
1.28123724 × 10^8
Engineering notation
1.28123724 × 10^6
Prime Factorization
2 × 2 × 3 × 10676977
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
64061862 Product of the distinct prime numbers
The prime factorization of 128123724 is 2 × 2 × 3 × 10676977.
Since it has a total of 4 prime factors.
8 , 8 , 35 , 92 , 112 , 520 , 6557 , 3862 , 18106 , 78503 , 415937 , 316002 , 7029559 , 7867104 , 68082204 , 10813577 , 400424549 , 225286538 , 4408171056 , 8344115406
n×2
256247448
n×3
384371172
n×4
512494896
n×5
640618620
n÷2
64061862
n÷3
42707908
n÷3
32030931
n÷5
25624744.8
n2
16415688651628176
n3
2.1032391620711E+24
n4
2.6947483390719E+32
n5
3.4526119244471E+40
2 √n11319.175058281
3 √n504.13074524329
4 √n106.39161178533
5 √n41.83366464849
1 , 2 , 3 , 4 , 6 , 12 , 10676977 , 21353954 , 32030931 , 42707908 , 64061862 , 128123724
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-128123723 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128123724 can be divided by 12 positive divisors.
The sum of these divisors (counting 128123724) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101000110000001101001100
3
Ternary
22221002100201010
4
Quaternary
13220300031030
5
Quinary
230244424344
6
Senary
20414045220
8
Octal
750601514
10
Decimal
128123724
12
Duodecimal
36aa9810
16
Hexadecimal
7a3034c
20
Vigesimal
200f964
36
Base36
24a4wc
md5
f76ad294da18bbe403e9cd1d8114c141
sha1
db60f9fe88c116f543f7071d7db3e47d87f96f81
sha256
91e304d8b515065d54bb630b40544f73b4130858c6abec221f2aafdbe1f0262c
sha512
6f725f5f2ec6f568a960a111258d5369e416228676bce9f130c30bcf99a4e03280c683370ccabc800cf568c5b633643cd287e97442df1a6860d927a54a952d49
ripemd-160
544c9a3a546f06acddd59ca4a6c8d1b1a9eb63b1
Diameter
256247448
Circumference
805025100.13793
Area
5.1571406871572E+16
Volume
8.8100276004067E+24
Surface area
2.0628562748629E+17
Circumference
805025100.13793
Perimeter
512494896
Area
16415688651628176
Diagonal
181194308.14255
Surface area
98494131909769056
Volume
2.1032391620711E+24
Space diagonal
221916799.62293
Perimeter
384371172
Area
7.108201696463E+15
Altitude
110958399.81147
Surface area
7.108201696463E+15
Volume
2.4786911232627E+23
Height
60398102.714182