81129 (number)

81129 is an odd 5-digits composite number following 81128 and preceding 81130. In scientific notation, it is written as 8.1129 × 10^4. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 54084 positive integers (up to 81129) that are relatively prime to 81129.

Interesting facts

Basic properties

Name

Name eighty-one thousand one hundred twenty-nine

Notation

Scientific notation 8.1129 × 10^4
Engineering notation 8.1129 × 10^3

Prime Factorization of 81129

Prime Factorization 3 × 27043

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81129
Product of the distinct prime numbers

The prime factorization of 81129 is 3 × 27043. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 24, 92, 519, 980, 7108, 3357, 60404, 38229, 574552, 178647, 3338443, 5000411, 8897984, 38438248, 848478234, 382176, 5560146710, 836770811

Basic calculations (n = 81129)

Multiplication

n×y
n×2 162258
n×3 243387
n×4 324516
n×5 405645

Division

n÷y
n÷2 40564.5
n÷3 27043
n÷3 20282.25
n÷5 16225.8

Exponentiation

ny
n2 6581914641
n3 533984152909689
n4 4.332160034141E+19
n5 3.5146381140983E+24

Nth Root

y√n
2√n 284.83152915364
3√n 43.290444086318
4√n 16.876952602696
5√n 9.5903669490746

Divisors of 81129

1, 3, 27043, 81129

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 -81128
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 81129 can be divided by 4 positive divisors. The sum of these divisors (counting 81129) is 1, the average is 0.25.

Base conversion 81129

Base System Value
2 Binary 10011110011101001
3 Ternary 11010021210
4 Quaternary 103303221
5 Quinary 10044004
6 Senary 1423333
8 Octal 236351
10 Decimal 81129
12 Duodecimal 3ab49
16 Hexadecimal 13ce9
20 Vigesimal a2g9
36 Base36 1qll

Cryptographic Hash Functions

md5 709601bd1ee52bc1621bd6467de55bc3
sha1 050f12f011a66a81084295cf8f6747bd66d1b115
sha256 bb44ce543036cb2d7cb0d71316a1ccc68bda84f414423d236a07c4c2523c611d
sha512 3a2642bbbd240b743f5a31b259a690eabdf23321bd96defb7141c5251ba98bf33b828580116cec4784a0aa9b2114214225d5f7fa5a1c0e196ed817616456808f
ripemd-160 22b1c5830b1bea7deac4b6b3a4a64a35c42fa355

81129 as geometric shapes

Circle

Radius = n
Diameter 162258
Circumference 509748.54078617
Area 20677694682.721

Sphere

Radius = n
Volume 2.2367475892193E+15
Surface area 82710778730.883
Circumference 509748.54078617

Square

Length = n
Perimeter 324516
Area 6581914641
Diagonal 114733.73210177

Cube

Length = n
Surface area 39491487846
Volume 533984152909689
Space diagonal 140519.54996726

Equilateral Triangle

Length = n
Perimeter 243387
Area 2850052642.3234
Altitude 70259.774983628

Triangular Pyramid

Length = n
Surface area 2850052642.3234
Volume 62930635928099
Height 38244.577367256