128389912 (number)

128389912 is an even 9-digits composite number following 128389911 and preceding 128389913. In scientific notation, it is written as 1.28389912 × 10^8. The sum of its digits is 43. It has a total of 6 prime factors and 32 positive divisors. There are 54487584 positive integers (up to 128389912) that are relatively prime to 128389912.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million three hundred eighty-nine thousand nine hundred twelve

Notation

Scientific notation 1.28389912 × 10^8
Engineering notation 1.28389912 × 10^6

Prime Factorization of 128389912

Prime Factorization 2 × 2 × 2 × 7 × 103 × 22259

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 32097478
Product of the distinct prime numbers

The prime factorization of 128389912 is 2 × 2 × 2 × 7 × 103 × 22259. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128389912)

Multiplication

n×y
n×2 256779824
n×3 385169736
n×4 513559648
n×5 641949560

Division

n÷y
n÷2 64194956
n÷3 42796637.333333
n÷3 32097478
n÷5 25677982.4

Exponentiation

ny
n2 16483969503367744
n3 2.1163753939481E+24
n4 2.7172125058796E+32
n5 3.4886267451518E+40

Nth Root

y√n
2√n 11330.927234785
3√n 504.47962866336
4√n 106.44682820444
5√n 41.851032824525

Divisors of 128389912

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 -128389911
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 128389912 can be divided by 32 positive divisors. The sum of these divisors (counting 128389912) is 1, the average is 0.03125.

Base conversion 128389912

Base System Value
2 Binary 111101001110001001100011000
3 Ternary 22221120212211221
4 Quaternary 13221301030120
5 Quinary 230331434122
6 Senary 20423501424
8 Octal 751611430
10 Decimal 128389912
12 Duodecimal 36bb7874
16 Hexadecimal 7a71318
20 Vigesimal 2028efc
36 Base36 24fuag

Cryptographic Hash Functions

md5 8bc11ceb9a879702ad2e22b3bd573398
sha1 90fa2ad8fa0c739f036e5ca6ccdb6164ab930a4d
sha256 df38097785e779db28559f3663e8b992daf27178419fdcc1051245a6df4cd72a
sha512 2dc6c1511bd2e831ca53f976b118fc6a1b4d52823cb7c7480555f731f7674b6d63a857ea1ad62346238a95ea0a9fea7f908a7e8334a33e89a41eb3cbbcc20007
ripemd-160 948e88155a14570f3f3cbd162e4e2272030619c7

128389912 as geometric shapes

Circle

Radius = n
Diameter 256779824
Circumference 806697608.66848
Area 5.1785917493778E+16

Sphere

Radius = n
Volume 8.8650525198206E+24
Surface area 2.0714366997511E+17
Circumference 806697608.66848

Square

Length = n
Perimeter 513559648
Area 16483969503367744
Diagonal 181570754.82229

Cube

Length = n
Surface area 98903817020206464
Volume 2.1163753939481E+24
Space diagonal 222377850.7633

Equilateral Triangle

Length = n
Perimeter 385169736
Area 7.1377681725622E+15
Altitude 111188925.38165

Triangular Pyramid

Length = n
Surface area 7.1377681725622E+15
Volume 2.4941723209951E+23
Height 60523584.940763