128400538 is an even 9-digits composite number following 128400537
and preceding 128400539 . In scientific notation, it is written as 1.28400538 × 10^8.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 55028796 positive integers (up to 128400538) that are relatively prime to 128400538.
128400538 has 8 divisors, whose sum is 220115232
The reverse of 128400538 is 835004821
Previous prime number is 7
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred twenty-eight million four hundred thousand five hundred thirty-eight
Scientific notation
1.28400538 × 10^8
Engineering notation
1.28400538 × 10^6
Prime Factorization
2 × 7 × 9171467
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
128400538
Product of the distinct prime numbers
The prime factorization of 128400538 is 2 × 7 × 9171467.
Since it has a total of 3 prime factors.
10 , 2 , 63 , 63 , 24 , 683 , 5189 , 2919 , 56858 , 24073 , 290488 , 863373 , 2042780 , 1508731 , 73954431 , 14307371 , 536821617 , 753725036 , 7913614120 , 7379774398
n×2
256801076
n×3
385201614
n×4
513602152
n×5
642002690
n÷2
64200269
n÷3
42800179.333333
n÷3
32100134.5
n÷5
25680107.6
n2
16486698158689444
n3
2.1169009134193E+24
n4
2.7181121617573E+32
n5
3.4900706391399E+40
2 √n
11331.396118749
3 √n
504.49354578133
4 √n
106.44903061442
5 √n
41.851725549283
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
-128400537
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 128400538 can be divided by 8 positive divisors.
The sum of these divisors (counting 128400538) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101001110011110010011010
3
Ternary
22221121102102111
4
Quaternary
13221303302122
5
Quinary
230332304123
6
Senary
20424022534
8
Octal
751636232
10
Decimal
128400538
12
Duodecimal
37001a4a
16
Hexadecimal
7a73c9a
20
Vigesimal
202a16i
36
Base36
24g2hm
md5
762bb08c14fec0cf1b8bd06df5a9f450
sha1
796aa9610f81750f15051820ca0e0118e755195d
sha256
2cc0c3175ccdfa379d6b5f7fc906f19bb4b25ef2a4e031c790cb1d83668ba989
sha512
a2b002c3897dc261d06a005aacb0175ccf19aebb8f672be96cd39c817d1b310dc77669ba80aa0db70f386e8cbc18665384532cf61c7bbf0aa12cc3fe380388bb
ripemd-160
c7a71a2110b9d362e04188da156fbf8bb87b3a7e
Diameter
256801076
Circumference
806764373.79555
Area
5.1794489817291E+16
Volume
8.8672538106343E+24
Surface area
2.0717795926916E+17
Circumference
806764373.79555
Perimeter
513602152
Area
16486698158689444
Diagonal
181585782.2556
Surface area
98920188952136664
Volume
2.1169009134193E+24
Space diagonal
222396255.53518
Perimeter
385201614
Area
7.1389497149756E+15
Altitude
111198127.76759
Surface area
7.1389497149756E+15
Volume
2.4947916516313E+23
Height
60528594.085201