128538380 is an even 9-digits composite number following 128538379
and preceding 128538381 . In scientific notation, it is written as 1.28538380 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 51415344 positive integers (up to 128538380) that are relatively prime to 128538380.
128538380 has 12 divisors, whose sum is 269930640
The reverse of 128538380 is 083835821
Previous prime number is 5
Is Prime? no Number parity even Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred twenty-eight million five hundred thirty-eight thousand three hundred eighty
Scientific notation
1.28538380 × 10^8
Engineering notation
1.28538380 × 10^6
Prime Factorization
2 × 2 × 5 × 6426919
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
64269190 Product of the distinct prime numbers
The prime factorization of 128538380 is 2 × 2 × 5 × 6426919.
Since it has a total of 4 prime factors.
4 , 4 , 19 , 37 , 819 , 375 , 3144 , 5636 , 95700 , 36142 , 98743 , 149084 , 8128019 , 9066103 , 51486007 , 50536983 , 630430998 , 121599428 , 196902223 , 7241760102
n×2
257076760
n×3
385615140
n×4
514153520
n×5
642691900
n÷2
64269190
n÷3
42846126.666667
n÷3
32134595
n÷5
25707676
n2
16522115133024400
n3
2.1237259133724E+24
n4
2.7298028846891E+32
n5
3.5088444051727E+40
2 √n11337.476791597
3 √n504.67401109363
4 √n106.47758821272
5 √n41.860707520836
1 , 2 , 4 , 5 , 10 , 20 , 6426919 , 12853838 , 25707676 , 32134595 , 64269190 , 128538380
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
-128538379 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 128538380 can be divided by 12 positive divisors.
The sum of these divisors (counting 128538380) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101010010101011100001100
3
Ternary
22221212102111202
4
Quaternary
13222111130030
5
Quinary
230401212010
6
Senary
20431005032
8
Octal
752253414
10
Decimal
128538380
12
Duodecimal
37069778
16
Hexadecimal
7a9570c
20
Vigesimal
20375j0
36
Base36
24j0uk
md5
5a448a5a2b88ab6e994594cd46c6f675
sha1
4e506381e68f016fc6bb4a2d0597425032044ba5
sha256
d8d00638e3734387c23adce502039a6f58ebdeb568745b514b3fe30a174c1655
sha512
728d28b22ff60276bcd90f8d57150783b3e8cc1f60eaa948eb23b6403e785e6b52106494078dc05471d58d6a0eac0f127e044283472eabe6fce96d93b4232449
ripemd-160
bc49d3b69171f726eb5e179ede93e9debdbeeb86
Diameter
257076760
Circumference
807630460.62467
Area
5.1905755523674E+16
Volume
8.8958423035855E+24
Surface area
2.076230220947E+17
Circumference
807630460.62467
Perimeter
514153520
Area
16522115133024400
Diagonal
181780720.28147
Surface area
99132690798146400
Volume
2.1237259133724E+24
Space diagonal
222635004.8826
Perimeter
385615140
Area
7.1542857147252E+15
Altitude
111317502.4413
Surface area
7.1542857147252E+15
Volume
2.5028349912121E+23
Height
60593573.427156