20885 (number)

20885 is an odd 5-digits composite number following 20884 and preceding 20886. In scientific notation, it is written as 2.0885 × 10^4. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 16704 positive integers (up to 20885) that are relatively prime to 20885.

Interesting facts

Basic properties

Name

Name twenty thousand eight hundred eighty-five

Notation

Scientific notation 2.0885 × 10^4
Engineering notation 2.0885 × 10^3

Prime Factorization of 20885

Prime Factorization 5 × 4177

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20885
Product of the distinct prime numbers

The prime factorization of 20885 is 5 × 4177. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 3, 13, 10, 618, 80, 427, 216, 98395, 76316, 382483, 752630, 9368164, 3719606, 40654293, 28774719, 563077063, 755331134, 4148188562, 3723541666

Basic calculations (n = 20885)

Multiplication

n×y
n×2 41770
n×3 62655
n×4 83540
n×5 104425

Division

n÷y
n÷2 10442.5
n÷3 6961.6666666667
n÷3 5221.25
n÷5 4177

Exponentiation

ny
n2 436183225
n3 9109686654125
n4 190255805771400625
n5 3.9734925035357E+21

Nth Root

y√n
2√n 144.51643505152
3√n 27.538788239393
4√n 12.021498868757
5√n 7.3108335455958

Divisors of 20885

1, 5, 4177, 20885

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 -20884
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 20885 can be divided by 4 positive divisors. The sum of these divisors (counting 20885) is 1, the average is 0.25.

Base conversion 20885

Base System Value
2 Binary 101000110010101
3 Ternary 1001122112
4 Quaternary 11012111
5 Quinary 1132020
6 Senary 240405
8 Octal 50625
10 Decimal 20885
12 Duodecimal 10105
16 Hexadecimal 5195
20 Vigesimal 2c45
36 Base36 g45

Cryptographic Hash Functions

md5 92cad8e05ca788dc7475183dd19c959b
sha1 f07e6d905a63b0e417cf1313691aedae53265d0e
sha256 8568487b2b57fe2ba3a94f2bbe4a9fcea02b3454e8cb2728f43b769e0f821bca
sha512 9fa7107356fe2e9567aed58967a10f79c221e2cdc26afa357681255e549499789a62c04943fbbeff22afedc4263f92ae9603b6c88d1bb6e729922f6bc502c985
ripemd-160 0e22ab778b65637aee2bf0e848e8b8bc1cbfacd1

20885 as geometric shapes

Circle

Radius = n
Diameter 41770
Circumference 131224.32514045
Area 1370310015.2791

Sphere

Radius = n
Volume 38158566225472
Surface area 5481240061.1164
Circumference 131224.32514045

Square

Length = n
Perimeter 83540
Area 436183225
Diagonal 29535.850250162

Cube

Length = n
Surface area 2617099350
Volume 9109686654125
Space diagonal 36173.881116076

Equilateral Triangle

Length = n
Perimeter 62655
Area 188872876.77731
Altitude 18086.940558038

Triangular Pyramid

Length = n
Surface area 188872876.77731
Volume 1073586867936.1
Height 9845.2834167207