128538381 (number)

128538381 is an odd 9-digits composite number following 128538380 and preceding 128538382. In scientific notation, it is written as 1.28538381 × 10^8. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 85541040 positive integers (up to 128538381) that are relatively prime to 128538381.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred thirty-eight thousand three hundred eighty-one

Notation

Scientific notation 1.28538381 × 10^8
Engineering notation 1.28538381 × 10^6

Prime Factorization of 128538381

Prime Factorization 3 × 571 × 75037

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128538381
Product of the distinct prime numbers

The prime factorization of 128538381 is 3 × 571 × 75037. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128538381)

Multiplication

n×y
n×2 257076762
n×3 385615143
n×4 514153524
n×5 642691905

Division

n÷y
n÷2 64269190.5
n÷3 42846127
n÷3 32134595.25
n÷5 25707676.2

Exponentiation

ny
n2 16522115390101161
n3 2.1237259629388E+24
n4 2.7298029696382E+32
n5 3.5088445416628E+40

Nth Root

y√n
2√n 11337.476835698
3√n 504.67401240238
4√n 106.47758841981
5√n 41.860707585969

Divisors of 128538381

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 -128538380
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 128538381 can be divided by 8 positive divisors. The sum of these divisors (counting 128538381) is 1, the average is 0.125.

Base conversion 128538381

Base System Value
2 Binary 111101010010101011100001101
3 Ternary 22221212102111210
4 Quaternary 13222111130031
5 Quinary 230401212011
6 Senary 20431005033
8 Octal 752253415
10 Decimal 128538381
12 Duodecimal 37069779
16 Hexadecimal 7a9570d
20 Vigesimal 20375j1
36 Base36 24j0ul

Cryptographic Hash Functions

md5 2b600fbfd159a8eab15db7c8fd9db70e
sha1 6f7bfb006ceb9e533c184f31fe778be273f978d5
sha256 4ab372ac66c92959e2bd03d0b7668383a88a6b2d00df555469bb9b42a43b0fd5
sha512 02c2dcf1d22700698127c79a362b6c010d0ae72b1ff74ac03b4ede9866e38f422cc093f58b9fb7bb1ac307c2fe9a5957b2fe56265951b6e72d0b9295cfc791e1
ripemd-160 fae05ef6c3121ef2ae3b1fbc04a61e00dc8cd04e

128538381 as geometric shapes

Circle

Radius = n
Diameter 257076762
Circumference 807630466.90785
Area 5.1905756331305E+16

Sphere

Radius = n
Volume 8.8958425112085E+24
Surface area 2.0762302532522E+17
Circumference 807630466.90785

Square

Length = n
Perimeter 514153524
Area 16522115390101161
Diagonal 181780721.69568

Cube

Length = n
Surface area 99132692340606966
Volume 2.1237259629388E+24
Space diagonal 222635006.61465

Equilateral Triangle

Length = n
Perimeter 385615143
Area 7.1542858260427E+15
Altitude 111317503.30732

Triangular Pyramid

Length = n
Surface area 7.1542858260427E+15
Volume 2.5028350496266E+23
Height 60593573.89856