81679 (number)

81679 is an odd 5-digits composite number following 81678 and preceding 81680. In scientific notation, it is written as 8.1679 × 10^4. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 73440 positive integers (up to 81679) that are relatively prime to 81679.

Interesting facts

Basic properties

Name

Name eighty-one thousand six hundred seventy-nine

Notation

Scientific notation 8.1679 × 10^4
Engineering notation 8.1679 × 10^3

Prime Factorization of 81679

Prime Factorization 13 × 103 × 61

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81679
Product of the distinct prime numbers

The prime factorization of 81679 is 13 × 103 × 61. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 3, 5, 88, 730, 729, 6374, 5017, 43761, 75818, 682966, 833225, 1577020, 1563644, 75758766, 4943069, 505032545, 500764887, 5702360309, 934938443

Basic calculations (n = 81679)

Multiplication

n×y
n×2 163358
n×3 245037
n×4 326716
n×5 408395

Division

n÷y
n÷2 40839.5
n÷3 27226.333333333
n÷3 20419.75
n÷5 16335.8

Exponentiation

ny
n2 6671459041
n3 544918103009839
n4 4.4508365735741E+19
n5 3.6353988049296E+24

Nth Root

y√n
2√n 285.79538134826
3√n 43.388050537368
4√n 16.905483765579
5√n 9.6033350767665

Divisors of 81679

1, 13, 61, 103, 793, 1339, 6283, 81679

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 -81678
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 81679 can be divided by 8 positive divisors. The sum of these divisors (counting 81679) is 1, the average is 0.125.

Base conversion 81679

Base System Value
2 Binary 10011111100001111
3 Ternary 11011001011
4 Quaternary 103330033
5 Quinary 10103204
6 Senary 1430051
8 Octal 237417
10 Decimal 81679
12 Duodecimal 3b327
16 Hexadecimal 13f0f
20 Vigesimal a43j
36 Base36 1r0v

Cryptographic Hash Functions

md5 8c26bb0a61960e80894aac1f8cd2eb7e
sha1 58d54a89e7403d9657f88514944c4363cac08deb
sha256 281cdce61a09c05d4c89a78dca3ec490822a9b674daa246e3fc02f8f035637f2
sha512 a90940333cfbc09628e678ea80ff520afd72a01f214551e7b93395c772794d93c529256e5b14d9a372779f170aa668a8f14540704adbd78ea6530869c93c1ce9
ripemd-160 8f39fc4cc573e9bab500d3de9ebc0fa7d50a4cd0

81679 as geometric shapes

Circle

Radius = n
Diameter 163358
Circumference 513204.29270512
Area 20959006711.931

Sphere

Radius = n
Volume 2.2825476122984E+15
Surface area 83836026847.723
Circumference 513204.29270512

Square

Length = n
Perimeter 326716
Area 6671459041
Diagonal 115511.54956107

Cube

Length = n
Surface area 40028754246
Volume 544918103009839
Space diagonal 141472.17791142

Equilateral Triangle

Length = n
Perimeter 245037
Area 2888826504.9067
Altitude 70736.088955709

Triangular Pyramid

Length = n
Surface area 2888826504.9067
Volume 64219214304928
Height 38503.849853691