128538515 is an odd 9-digits composite number following 128538514
and preceding 128538516 . In scientific notation, it is written as 1.28538515 × 10^8.
The sum of its digits is 38. It has a total of 5 prime factors and 32 positive divisors.
There are 81768960 positive integers (up to 128538515) that are relatively prime to 128538515.
128538515 has 32 divisors, whose sum is 162362880
The reverse of 128538515 is 515835821
Previous prime number is 53
Is Prime? no Number parity odd Number length 9 Sum of Digits 38 Digital Root 2
Name
one hundred twenty-eight million five hundred thirty-eight thousand five hundred fifteen
Scientific notation
1.28538515 × 10^8
Engineering notation
1.28538515 × 10^6
Prime Factorization
35 × 7 × 19 × 53 × 521
Composite number
ω Distinct Factors
5 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
128538515 Product of the distinct prime numbers
The prime factorization of 128538515 is 35 × 7 × 19 × 53 × 521.
Since it has a total of 5 prime factors.
7 , 7 , 38 , 10 , 834 , 759 , 6089 , 279 , 6196 , 23523 , 638622 , 559108 , 8739560 , 3117428 , 51155009 , 63300812 , 938217319 , 36868812 , 5969188162 , 3221419285
n×2
257077030
n×3
385615545
n×4
514154060
n×5
642692575
n÷2
64269257.5
n÷3
42846171.666667
n÷3
32134628.75
n÷5
25707703
n2
16522149838405225
n3
2.1237326048361E+24
n4
2.7298143528271E+32
n5
3.5088628313809E+40
2 √n11337.482745301
3 √n504.67418777489
4 √n106.47761617026
5 √n41.860716313841
1 , 7 , 19 , 35 , 53 , 133 , 245 , 371 , 521 , 665 , 1007 , 1855 , 3647 , 4655 , 7049 , 9899 , 12985 , 18235 , 27613 , 35245 , 69293 , 127645 , 193291 , 246715 , 346465 , 524647 , 966455 , 2425255 , 3672529 , 6765185 , 18362645 , 128538515
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
-128538514 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 128538515 can be divided by 32 positive divisors.
The sum of these divisors (counting 128538515) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111101010010101011110010011
3
Ternary
22221212102200202
4
Quaternary
13222111132103
5
Quinary
230401213030
6
Senary
20431005415
8
Octal
752253623
10
Decimal
128538515
12
Duodecimal
3706986b
16
Hexadecimal
7a95793
20
Vigesimal
203765f
36
Base36
24j0yb
md5
78d9fb93ececc6518f8a224382efd4fc
sha1
384d2265805843b64c2ba5d1dd6f32f0743c1716
sha256
47993037e10a3411917483dc6f40c96c0f0b5b86d7edb91a1bfa46a051f57212
sha512
3b2f7186953af67f1e284f76bfda131f17c98e18d73b2e7fe3883e0f912a25e09803707fd6a4e7f7cc52f1b536cb3350de2f919fede6f894906f4239a23eb769
ripemd-160
fcb8c1ca8b9c9ff502801f697f9f5638fba75fad
Diameter
257077030
Circumference
807631308.85468
Area
5.1905864553844E+16
Volume
8.8958703327229E+24
Surface area
2.0762345821537E+17
Circumference
807631308.85468
Perimeter
514154060
Area
16522149838405225
Diagonal
181780911.2003
Surface area
99132899030431350
Volume
2.1237326048361E+24
Space diagonal
222635238.70945
Perimeter
385615545
Area
7.1543007425959E+15
Altitude
111317619.35473
Surface area
7.1543007425959E+15
Volume
2.5028428771776E+23
Height
60593637.066766