82991 (number)

82991 is an odd 5-digits composite number following 82990 and preceding 82992. In scientific notation, it is written as 8.2991 × 10^4. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 80712 positive integers (up to 82991) that are relatively prime to 82991.

Interesting facts

Basic properties

Name

Name eighty-two thousand nine hundred ninety-one

Notation

Scientific notation 8.2991 × 10^4
Engineering notation 8.2991 × 10^3

Prime Factorization of 82991

Prime Factorization 37 × 2243

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 82991
Product of the distinct prime numbers

The prime factorization of 82991 is 37 × 2243. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 70, 64, 280, 70, 4417, 3204, 75449, 83665, 458634, 927009, 7267537, 1523780, 9035468, 91400012, 685619970, 691577653, 1636144908, 339827358

Basic calculations (n = 82991)

Multiplication

n×y
n×2 165982
n×3 248973
n×4 331964
n×5 414955

Division

n÷y
n÷2 41495.5
n÷3 27663.666666667
n÷3 20747.75
n÷5 16598.2

Exponentiation

ny
n2 6887506081
n3 571601017168271
n4 4.7437740015812E+19
n5 3.9369054816523E+24

Nth Root

y√n
2√n 288.08158566628
3√n 43.619130005508
4√n 16.972966319011
5√n 9.6339901851253

Divisors of 82991

1, 37, 2243, 82991

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 -82990
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 82991 can be divided by 4 positive divisors. The sum of these divisors (counting 82991) is 1, the average is 0.25.

Base conversion 82991

Base System Value
2 Binary 10100010000101111
3 Ternary 11012211202
4 Quaternary 110100233
5 Quinary 10123431
6 Senary 1440115
8 Octal 242057
10 Decimal 82991
12 Duodecimal 4003b
16 Hexadecimal 1442f
20 Vigesimal a79b
36 Base36 1s1b

Cryptographic Hash Functions

md5 e05b57950b41986a63248956635b3168
sha1 17ba907d29c1c770d4db447b9e742b2d7670f9a8
sha256 b41d9e1b2817e55c0e0609f69b1f366d5fe720bef2276979cc91d78615d7209d
sha512 38747e5bcd7b92bf5d2527b3788e75feed18a28c650d72c231f88afa535a683d57071498cb8c35b1b725f3ef5c3ba237da1ad5f17ec32c4e05392f59d5f53168
ripemd-160 a237c815202aff9b3202b006e1a5cecc8d943f84

82991 as geometric shapes

Circle

Radius = n
Diameter 165982
Circumference 521447.83182814
Area 21637738505.625

Sphere

Radius = n
Volume 2.3943167417604E+15
Surface area 86550954022.499
Circumference 521447.83182814

Square

Length = n
Perimeter 331964
Area 6887506081
Diagonal 117366.99775491

Cube

Length = n
Surface area 41325036486
Volume 571601017168271
Space diagonal 143744.62857095

Equilateral Triangle

Length = n
Perimeter 248973
Area 2982377617.4329
Altitude 71872.314285474

Triangular Pyramid

Length = n
Surface area 2982377617.4329
Volume 67363825895469
Height 39122.332584969