81684976 (number)

81684976 is an even 8-digits composite number following 81684975 and preceding 81684977. In scientific notation, it is written as 8.1684976 × 10^7. The sum of its digits is 49. It has a total of 6 prime factors and 20 positive divisors. There are 40766400 positive integers (up to 81684976) that are relatively prime to 81684976.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred eighty-four thousand nine hundred seventy-six

Notation

Scientific notation 8.1684976 × 10^7
Engineering notation 8.1684976 × 10^6

Prime Factorization of 81684976

Prime Factorization 2 × 2 × 2 × 2 × 571 × 8941

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10210622
Product of the distinct prime numbers

The prime factorization of 81684976 is 2 × 2 × 2 × 2 × 571 × 8941. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81684976)

Multiplication

n×y
n×2 163369952
n×3 245054928
n×4 326739904
n×5 408424880

Division

n÷y
n÷2 40842488
n÷3 27228325.333333
n÷3 20421244
n÷5 16336995.2

Exponentiation

ny
n2 6672435304120576
n3 5.4503771767864E+23
n4 4.4521392887675E+31
n5 3.6367289095163E+39

Nth Root

y√n
2√n 9037.9741092791
3√n 433.89108666004
4√n 95.068260262188
5√n 38.232124974891

Divisors of 81684976

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81684975
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81684976 can be divided by 20 positive divisors. The sum of these divisors (counting 81684976) is 1, the average is 0.05.

Base conversion 81684976

Base System Value
2 Binary 100110111100110100111110000
3 Ternary 12200201000201111
4 Quaternary 10313212213300
5 Quinary 131402404401
6 Senary 12034443104
8 Octal 467464760
10 Decimal 81684976
12 Duodecimal 23433494
16 Hexadecimal 4de69f0
20 Vigesimal 15aac8g
36 Base36 1cmsj4

Cryptographic Hash Functions

md5 d7f4b093b1b4d684c997926a595e08e5
sha1 bbe695921f60186c6298975ef8519b222638eda9
sha256 deaed8c1323ed30ef4af285569f179c9a61b37b3f8f152ca4bb54f0a45bdda7c
sha512 f38077db69e5fe6ae996f6d1068cc7bf85559a3f49e6e1c16d1697549497a65263c832ac335977fd62ae936eb412fd26dfbdd4236ce2d42e227d46a5859b976a
ripemd-160 150918101e9e53f172372b042636f539808eb312

81684976 as geometric shapes

Circle

Radius = n
Diameter 163369952
Circumference 513241841.02052
Area 2.0962073732978E+16

Sphere

Radius = n
Volume 2.2830486530514E+24
Surface area 8.3848294931914E+16
Circumference 513241841.02052

Square

Length = n
Perimeter 326739904
Area 6672435304120576
Diagonal 115520000.90132

Cube

Length = n
Surface area 40034611824723456
Volume 5.4503771767864E+23
Space diagonal 141482528.64704

Equilateral Triangle

Length = n
Perimeter 245054928
Area 2.8892492392383E+15
Altitude 70741264.323522

Triangular Pyramid

Length = n
Surface area 2.8892492392383E+15
Volume 6.4233311028834E+22
Height 38506666.967107