40905 (number)

40905 is an odd 5-digits composite number following 40904 and preceding 40906. In scientific notation, it is written as 4.0905 × 10^4. The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors. There are 21600 positive integers (up to 40905) that are relatively prime to 40905.

Interesting facts

Basic properties

Name

Name forty thousand nine hundred five

Notation

Scientific notation 4.0905 × 10^4
Engineering notation 4.0905 × 10^3

Prime Factorization of 40905

Prime Factorization 9 × 9 × 5 × 101

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 4545
Product of the distinct prime numbers

The prime factorization of 40905 is 9 × 9 × 5 × 101. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 40905)

Multiplication

n×y
n×2 81810
n×3 122715
n×4 163620
n×5 204525

Division

n÷y
n÷2 20452.5
n÷3 13635
n÷3 10226.25
n÷5 8181

Exponentiation

ny
n2 1673219025
n3 68443024217625
n4 2799661905621950625
n5 1.1452017024947E+23

Nth Root

y√n
2√n 202.2498454882
3√n 34.455519235253
4√n 14.221457220981
5√n 8.3628687219194

Divisors of 40905

1, 5, 9, 45, 81, 101, 405, 505, 909, 4545, 8181, 40905

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -40904
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 40905 can be divided by 12 positive divisors. The sum of these divisors (counting 40905) is 1, the average is 0.083333333333333.

Base conversion 40905

Base System Value
2 Binary 1001111111001001
3 Ternary 2002010000
4 Quaternary 21333021
5 Quinary 2302110
6 Senary 513213
8 Octal 117711
10 Decimal 40905
12 Duodecimal 1b809
16 Hexadecimal 9fc9
20 Vigesimal 5255
36 Base36 vk9

Cryptographic Hash Functions

md5 52bfa4d6570bb8d6271bb1e78f1464d7
sha1 9eaabf1542db6539265f317509cea6498bdad789
sha256 dd3589cea5a1c1caa6f5214538e736b895d3e4da8285ca00b0fee3eebe4d94c1
sha512 df9a59f34937235c5e759d34c3b8dd7480c67b6cdcfeebd1946f269c13b80236be1ffeff85350a1bf64bf9bffa908ea5bfb23b97563dec44e4b02c34ddbd9330
ripemd-160 3c36a7b5c135113e7b32aced3bdbc59637c92646

40905 as geometric shapes

Circle

Radius = n
Diameter 81810
Circumference 257013.69499018
Area 5256572596.7867

Sphere

Radius = n
Volume 2.8669346942875E+14
Surface area 21026290387.147
Circumference 257013.69499018

Square

Length = n
Perimeter 163620
Area 1673219025
Diagonal 57848.405768871

Cube

Length = n
Surface area 10039314150
Volume 68443024217625
Space diagonal 70849.538283605

Equilateral Triangle

Length = n
Perimeter 122715
Area 724525090.87271
Altitude 35424.769141802

Triangular Pyramid

Length = n
Surface area 724525090.87271
Volume 8066087758199.6
Height 19282.801922957