128957489 (number)

128957489 is an odd 9-digits composite number following 128957488 and preceding 128957490. In scientific notation, it is written as 1.28957489 × 10^8. The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors. There are 124675200 positive integers (up to 128957489) that are relatively prime to 128957489.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred fifty-seven thousand four hundred eighty-nine

Notation

Scientific notation 1.28957489 × 10^8
Engineering notation 1.28957489 × 10^6

Prime Factorization of 128957489

Prime Factorization 31 × 1999 × 2081

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128957489
Product of the distinct prime numbers

The prime factorization of 128957489 is 31 × 1999 × 2081. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128957489)

Multiplication

n×y
n×2 257914978
n×3 386872467
n×4 515829956
n×5 644787445

Division

n÷y
n÷2 64478744.5
n÷3 42985829.666667
n÷3 32239372.25
n÷5 25791497.8

Exponentiation

ny
n2 16630033969185121
n3 2.1445674226508E+24
n4 2.7655802981625E+32
n5 3.5664229087891E+40

Nth Root

y√n
2√n 11355.945094971
3√n 505.22192513696
4√n 106.56427682376
5√n 41.887969980906

Divisors of 128957489

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 -128957488
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 128957489 can be divided by 8 positive divisors. The sum of these divisors (counting 128957489) is 1, the average is 0.125.

Base conversion 128957489

Base System Value
2 Binary 111101011111011110000110001
3 Ternary 22222122201102022
4 Quaternary 13223323300301
5 Quinary 231003114424
6 Senary 20444001225
8 Octal 753736061
10 Decimal 128957489
12 Duodecimal 37230215
16 Hexadecimal 7afbc31
20 Vigesimal 205jde9
36 Base36 24s08h

Cryptographic Hash Functions

md5 a57c84f962875b6e0dda3d64c6ca8dac
sha1 474d20c2aa93d799bde2218c418c6ed029fda6ef
sha256 107f985f291b0dba88a6404bfc6dd4e7ef40b65e19c3b72e0dc86f384dea09c9
sha512 e2b45bd9b0373e8cb3b7e7bac2176b822273561ea0ee8415807f41e5a126dae1b0192dd41232fca4e8597a24282e322b5f3c0632504cec3590034436e98d0f1e
ripemd-160 8bf0d55a1f849d2240bd92cf34b32d37fabc96cf

128957489 as geometric shapes

Circle

Radius = n
Diameter 257914978
Circumference 810263800.13557
Area 5.2244792546541E+16

Sphere

Radius = n
Volume 8.9831430135037E+24
Surface area 2.0897917018616E+17
Circumference 810263800.13557

Square

Length = n
Perimeter 515829956
Area 16630033969185121
Diagonal 182373429.91338

Cube

Length = n
Surface area 99780203815110726
Volume 2.1445674226508E+24
Space diagonal 223360922.9645

Equilateral Triangle

Length = n
Perimeter 386872467
Area 7.2010159415562E+15
Altitude 111680461.48225

Triangular Pyramid

Length = n
Surface area 7.2010159415562E+15
Volume 2.5273969454469E+23
Height 60791143.30446