20681 (number)

20681 is an odd 5-digits prime number following 20680 and preceding 20682. In scientific notation, it is written as 2.0681 × 10^4. The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors. There are 20680 positive integers (up to 20681) that are relatively prime to 20681.

Interesting facts

Basic properties

Name

Name twenty thousand six hundred eighty-one

Notation

Scientific notation 2.0681 × 10^4
Engineering notation 2.0681 × 10^3

Prime Factorization of 20681

Prime Factorization 20681

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 20681
Product of the distinct prime numbers

The prime factorization of 20681 is 20681. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 5, 66, 29, 217, 822, 9927, 9304, 62397, 8894, 630329, 37182, 3745897, 6152900, 70095663, 65101556, 93990735, 510166333, 5446038740, 7771039866

Basic calculations (n = 20681)

Multiplication

n×y
n×2 41362
n×3 62043
n×4 82724
n×5 103405

Division

n÷y
n÷2 10340.5
n÷3 6893.6666666667
n÷3 5170.25
n÷5 4136.2

Exponentiation

ny
n2 427703761
n3 8845341481241
n4 182930507173545121
n5 3.7831858188561E+21

Nth Root

y√n
2√n 143.80890097626
3√n 27.448830467213
4√n 11.992034897225
5√n 7.2964952977347

Divisors of 20681

1, 20681

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 20682
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10341
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 143.81237777048
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999032975534
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20681 can be divided by 2 positive divisors. The sum of these divisors (counting 20681) is 20682, the average is 10341.

Base conversion 20681

Base System Value
2 Binary 101000011001001
3 Ternary 1001100222
4 Quaternary 11003021
5 Quinary 1130211
6 Senary 235425
8 Octal 50311
10 Decimal 20681
12 Duodecimal bb75
16 Hexadecimal 50c9
20 Vigesimal 2be1
36 Base36 fyh

Cryptographic Hash Functions

md5 5a12243d83e5d4340291fd74318bffe2
sha1 e92c5c550e6c7aa93ebbc2e7154107ab589bcd49
sha256 868e9edb67ef21add0ac719e20c8f86fc98f284fe0de9f1102df392fea90b37d
sha512 b136a5ea98f4512122cc06771c063a5063c60b218c6b5cbd16ddcc2465c20a94fed51e76d241427a54f1afc35bcf3e7fa154d30b8c5e380f8916b52b3419201d
ripemd-160 560daf498cb4b2b61375ac911c347f47c523fd82

20681 as geometric shapes

Circle

Radius = n
Diameter 41362
Circumference 129942.55533778
Area 1343670993.4703

Sphere

Radius = n
Volume 37051279754613
Surface area 5374683973.8813
Circumference 129942.55533778

Square

Length = n
Perimeter 82724
Area 427703761
Diagonal 29247.350683438

Cube

Length = n
Surface area 2566222566
Volume 8845341481241
Space diagonal 35820.542751332

Equilateral Triangle

Length = n
Perimeter 62043
Area 185201161.16007
Altitude 17910.271375666

Triangular Pyramid

Length = n
Surface area 185201161.16007
Volume 1042433490549.4
Height 9749.1168944793