128385 (number)

128385 is an odd 6-digits composite number following 128384 and preceding 128386. In scientific notation, it is written as 1.28385 × 10^5. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 68256 positive integers (up to 128385) that are relatively prime to 128385.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28385 × 10^5
Engineering notation 1.28385 × 10^3

Prime Factorization of 128385

Prime Factorization 3 × 9 × 15 × 317

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128385
Product of the distinct prime numbers

The prime factorization of 128385 is 3 × 9 × 15 × 317. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 3, 63, 61, 665, 883, 7790, 1208, 39624, 39348, 534684, 329043, 4478692, 7337979, 6242263, 66694380, 643351014, 38646270, 5654405086, 868135904

Basic calculations (n = 128385)

Multiplication

n×y
n×2 256770
n×3 385155
n×4 513540
n×5 641925

Division

n÷y
n÷2 64192.5
n÷3 42795
n÷3 32096.25
n÷5 25677

Exponentiation

ny
n2 16482708225
n3 2116132495466625
n4 2.7167967043048E+20
n5 3.4879594488218E+25

Nth Root

y√n
2√n 358.3085262731
3√n 50.447319504383
4√n 18.9290392327
5√n 10.512423709989

Divisors of 128385

1, 3, 9, 15, 27, 45, 135, 317, 405, 951, 2853, 4755, 8559, 14265, 42795, 128385

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128384
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128385 can be divided by 16 positive divisors. The sum of these divisors (counting 128385) is 1, the average is 0.0625.

Base conversion 128385

Base System Value
2 Binary 11111010110000001
3 Ternary 20112010000
4 Quaternary 133112001
5 Quinary 13102020
6 Senary 2430213
8 Octal 372601
10 Decimal 128385
12 Duodecimal 62369
16 Hexadecimal 1f581
20 Vigesimal g0j5
36 Base36 2r29

Cryptographic Hash Functions

md5 e722e60b6b719aa6307be9365fe0b1da
sha1 80ce166d124677524f021f623ad9d5b41230475d
sha256 2c614e884aff18e81d0c91da6cec06c87ce086360389cc68fa10ad474032f81e
sha512 f602ff899ca58f0932dfcafa41f770eb235797df85ac0dfe3c1adacb879f375aaf6dd257b3f1f38eb1aa298cab1894aaca36a17bcc92fca865ad282514695bfa
ripemd-160 85c775c72ef27b4aab0ef3707a3a30150685ab5d

128385 as geometric shapes

Circle

Radius = n
Diameter 256770
Circumference 806666.74566225
Area 51781955070.924

Sphere

Radius = n
Volume 8.8640350690408E+15
Surface area 207127820283.7
Circumference 806666.74566225

Square

Length = n
Perimeter 513540
Area 16482708225
Diagonal 181563.80820527

Cube

Length = n
Surface area 98896249350
Volume 2116132495466625
Space diagonal 222369.34292973

Equilateral Triangle

Length = n
Perimeter 385155
Area 7137222023.0084
Altitude 111184.67146487

Triangular Pyramid

Length = n
Surface area 7137222023.0084
Volume 2.4938860623894E+14
Height 60521.269401757