855 (number)

855 is an odd 3-digits composite number following 854 and preceding 856. In scientific notation, it is written as 8.55 × 10^2. The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors. There are 432 positive integers (up to 855) that are relatively prime to 855.

Interesting facts

Basic properties

Name

Name eight hundred fifty-five

Notation

Scientific notation 8.55 × 10^2
Engineering notation 8.55 × 10^0

Prime Factorization of 855

Prime Factorization 45 × 19

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 855
Product of the distinct prime numbers

The prime factorization of 855 is 45 × 19. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 855)

Multiplication

n×y
n×2 1710
n×3 2565
n×4 3420
n×5 4275

Division

n÷y
n÷2 427.5
n÷3 285
n÷3 213.75
n÷5 171

Exponentiation

ny
n2 731025
n3 625026375
n4 534397550625
n5 456909905784375

Nth Root

y√n
2√n 29.240383034427
3√n 9.4912199580293
4√n 5.4074377513224
5√n 3.8582753911826

Divisors of 855

1, 19, 45, 855

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -854
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 855 can be divided by 4 positive divisors. The sum of these divisors (counting 855) is 1, the average is 0.25.

Base conversion 855

Base System Value
2 Binary 1101010111
3 Ternary 1011200
4 Quaternary 31113
5 Quinary 11410
6 Senary 3543
8 Octal 1527
10 Decimal 855
12 Duodecimal 5b3
16 Hexadecimal 357
20 Vigesimal 22f
36 Base36 nr

Cryptographic Hash Functions

md5 addfa9b7e234254d26e9c7f2af1005cb
sha1 ebcab2a931b194b46b7af052d17915e104a90428
sha256 3097fc802d49355a0a256d4b07ab9f7257fcf35077cdb8133d59f607fedb229e
sha512 d93c3809a83059dc651e83f84639afbea8920e61fcdeeccac689b3dd666fbf849a00a30748bc9610347e1ff9f63059fd9adaa150f501244d066ec84a0b1df3cf
ripemd-160 94b57e310877e397d3b74880102da8a3796ec302

855 as geometric shapes

Circle

Radius = n
Diameter 1710
Circumference 5372.1234376385
Area 2296582.7695905

Sphere

Radius = n
Volume 2618104357.3331
Surface area 9186331.0783619
Circumference 5372.1234376385

Square

Length = n
Perimeter 3420
Area 731025
Diagonal 1209.152595829

Cube

Length = n
Surface area 4386150
Volume 625026375
Space diagonal 1480.9034404714

Equilateral Triangle

Length = n
Perimeter 2565
Area 316543.11040076
Altitude 740.4517202357

Triangular Pyramid

Length = n
Surface area 316543.11040076
Volume 73660064.697158
Height 403.05086527633