20731 (number)

20731 is an odd 5-digits prime number following 20730 and preceding 20732. In scientific notation, it is written as 2.0731 × 10^4. The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors. There are 20730 positive integers (up to 20731) that are relatively prime to 20731.

Interesting facts

Basic properties

Name

Name twenty thousand seven hundred thirty-one

Notation

Scientific notation 2.0731 × 10^4
Engineering notation 2.0731 × 10^3

Prime Factorization of 20731

Prime Factorization 20731

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 20731
Product of the distinct prime numbers

The prime factorization of 20731 is 20731. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 3, 89, 49, 957, 504, 2542, 7839, 85181, 9848, 846824, 35964, 2382168, 4261898, 48331889, 71748588, 334893155, 196843611, 2009137536, 836701333

Basic calculations (n = 20731)

Multiplication

n×y
n×2 41462
n×3 62193
n×4 82924
n×5 103655

Division

n÷y
n÷2 10365.5
n÷3 6910.3333333333
n÷3 5182.75
n÷5 4146.2

Exponentiation

ny
n2 429774361
n3 8909652277891
n4 184706001372958321
n5 3.8291401144628E+21

Nth Root

y√n
2√n 143.98263784221
3√n 27.470933475867
4√n 11.999276554951
5√n 7.300020006059

Divisors of 20731

1, 20731

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 20732
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10366
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 143.98611044125
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999035307737
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20731 can be divided by 2 positive divisors. The sum of these divisors (counting 20731) is 20732, the average is 10366.

Base conversion 20731

Base System Value
2 Binary 101000011111011
3 Ternary 1001102211
4 Quaternary 11003323
5 Quinary 1130411
6 Senary 235551
8 Octal 50373
10 Decimal 20731
12 Duodecimal bbb7
16 Hexadecimal 50fb
20 Vigesimal 2bgb
36 Base36 fzv

Cryptographic Hash Functions

md5 e06015c0688508d35fc02b0434cb7ce9
sha1 09ed02ba7a31952fac2a7d92fd9ade48f16d63d9
sha256 fb2b830745f7bcc3126e23a7071f5cae4a20a32a9b5e432887ea73398c55eaaf
sha512 63d4f5773e932c635aa50947814af0952e8aaa3e1c837f7c42f2beed92055fbeaab609a679a7dc9b0a14e5e7c6ecd9d4fd1fe30a7e0dab0b45b787734e52c620
ripemd-160 8723b329b4fd482334f98a27938e05ba03328996

20731 as geometric shapes

Circle

Radius = n
Diameter 41462
Circumference 130256.71460314
Area 1350175975.2188

Sphere

Radius = n
Volume 37320664189683
Surface area 5400703900.8754
Circumference 130256.71460314

Square

Length = n
Perimeter 82924
Area 429774361
Diagonal 29318.061361557

Cube

Length = n
Surface area 2578646166
Volume 8909652277891
Space diagonal 35907.14529171

Equilateral Triangle

Length = n
Perimeter 62193
Area 186097757.26061
Altitude 17953.572645855

Triangular Pyramid

Length = n
Surface area 186097757.26061
Volume 1050012590618.5
Height 9772.6871205189