81982 (number)

81982 is an even 5-digits composite number following 81981 and preceding 81983. In scientific notation, it is written as 8.1982 × 10^4. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 40584 positive integers (up to 81982) that are relatively prime to 81982.

Interesting facts

Basic properties

Name

Name eighty-one thousand nine hundred eighty-two

Notation

Scientific notation 8.1982 × 10^4
Engineering notation 8.1982 × 10^3

Prime Factorization of 81982

Prime Factorization 2 × 179 × 229

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81982
Product of the distinct prime numbers

The prime factorization of 81982 is 2 × 179 × 229. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 3, 54, 29, 295, 128, 1588, 4196, 48022, 98191, 127988, 192456, 1029441, 3955077, 41249475, 34403677, 655940494, 949285532, 9886169054, 9756751165

Basic calculations (n = 81982)

Multiplication

n×y
n×2 163964
n×3 245946
n×4 327928
n×5 409910

Division

n÷y
n÷2 40991
n÷3 27327.333333333
n÷3 20495.5
n÷5 16396.4

Exponentiation

ny
n2 6721048324
n3 551004983698168
n4 4.5172490573543E+19
n5 3.7033311222002E+24

Nth Root

y√n
2√n 286.32499017725
3√n 43.441635736164
4√n 16.921140333241
5√n 9.6104495183475

Divisors of 81982

1, 2, 179, 229, 358, 458, 40991, 81982

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81981
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81982 can be divided by 8 positive divisors. The sum of these divisors (counting 81982) is 1, the average is 0.125.

Base conversion 81982

Base System Value
2 Binary 10100000000111110
3 Ternary 11011110101
4 Quaternary 110000332
5 Quinary 10110412
6 Senary 1431314
8 Octal 240076
10 Decimal 81982
12 Duodecimal 3b53a
16 Hexadecimal 1403e
20 Vigesimal a4j2
36 Base36 1r9a

Cryptographic Hash Functions

md5 8f4a6a0a965dc69af2ed56551030df94
sha1 c9c74fa138dd33745f1ade3420c248cfb9fc6b87
sha256 a70ff3de0f242953539304ab2234bc82c215adce350eb9c20e32ce18ae89d4d0
sha512 215cdf07949a21d8076cbd5366f8cd42ef83227b62e3bdc3f6abd469ac07fe1e041cb33dc2acae2572812a5e36079f79672881a4b895847e9dc10596761f3126
ripemd-160 eadfdf13dcef791f8c57a872c92bd3f023bc1e8e

81982 as geometric shapes

Circle

Radius = n
Diameter 163964
Circumference 515108.0978532
Area 21114796039.1

Sphere

Radius = n
Volume 2.3080442785034E+15
Surface area 84459184156.402
Circumference 515108.0978532

Square

Length = n
Perimeter 327928
Area 6721048324
Diagonal 115940.05627047

Cube

Length = n
Surface area 40326289944
Volume 551004983698168
Space diagonal 141996.98930611

Equilateral Triangle

Length = n
Perimeter 245946
Area 2910299294.3234
Altitude 70998.494653056

Triangular Pyramid

Length = n
Surface area 2910299294.3234
Volume 64936560073426
Height 38646.68542349