128538555 (number)

128538555 is an odd 9-digits composite number following 128538554 and preceding 128538556. In scientific notation, it is written as 1.28538555 × 10^8. The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors. There are 64281600 positive integers (up to 128538555) that are relatively prime to 128538555.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred thirty-eight thousand five hundred fifty-five

Notation

Scientific notation 1.28538555 × 10^8
Engineering notation 1.28538555 × 10^6

Prime Factorization of 128538555

Prime Factorization 15 × 31 × 31 × 37 × 241

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4146405
Product of the distinct prime numbers

The prime factorization of 128538555 is 15 × 31 × 31 × 37 × 241. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 4, 5, 19, 24, 71, 5855, 3534, 44129, 24976, 396643, 214648, 1918470, 8756958, 9135981, 62842833, 526776859, 792967448, 1835324222, 2914822533

Basic calculations (n = 128538555)

Multiplication

n×y
n×2 257077110
n×3 385615665
n×4 514154220
n×5 642692775

Division

n÷y
n÷2 64269277.5
n÷3 42846185
n÷3 32134638.75
n÷5 25707711

Exponentiation

ny
n2 16522160121488025
n3 2.1237345874947E+24
n4 2.7298177508009E+32
n5 3.508868291013E+40

Nth Root

y√n
2√n 11337.484509361
3√n 504.67424012487
4√n 106.47762445397
5√n 41.860718919174

Divisors of 128538555

1, 15, 31, 37, 241, 465, 555, 961, 1147, 3615, 7471, 8917, 14415, 17205, 35557, 112065, 133755, 231601, 276427, 533355, 3474015, 4146405, 8569237, 128538555

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128538554
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128538555 can be divided by 24 positive divisors. The sum of these divisors (counting 128538555) is 1, the average is 0.041666666666667.

Base conversion 128538555

Base System Value
2 Binary 111101010010101011110111011
3 Ternary 22221212102202020
4 Quaternary 13222111132323
5 Quinary 230401213210
6 Senary 20431005523
8 Octal 752253673
10 Decimal 128538555
12 Duodecimal 370698a3
16 Hexadecimal 7a957bb
20 Vigesimal 203767f
36 Base36 24j0zf

Cryptographic Hash Functions

md5 fc528135300cb381bf60e1edb4c1671a
sha1 ee3086368b370697e449cdb18e8095b021c846ce
sha256 19a6890454f4de0d65e1bd43d07a03822656da9916fa607bbd213ae97cac3e6a
sha512 c3423c3b2735e74b125aeaade9d6e1eb5e4d590119ddc2b26bcf1e469e80df1d4ce3f12cfed72f4d23afb72333136f6df536122968911dc65c13f5be7d4f34cc
ripemd-160 d659ffcd717396eb9a274f34e5c45ef8fda3c4b0

128538555 as geometric shapes

Circle

Radius = n
Diameter 257077110
Circumference 807631560.1821
Area 5.1905896859101E+16

Sphere

Radius = n
Volume 8.8958786376638E+24
Surface area 2.076235874364E+17
Circumference 807631560.1821

Square

Length = n
Perimeter 514154220
Area 16522160121488025
Diagonal 181780967.76884

Cube

Length = n
Surface area 99132960728928150
Volume 2.1237345874947E+24
Space diagonal 222635307.99149

Equilateral Triangle

Length = n
Perimeter 385615665
Area 7.1543051953014E+15
Altitude 111317653.99574

Triangular Pyramid

Length = n
Surface area 7.1543051953014E+15
Volume 2.5028452137632E+23
Height 60593655.922947