81640384 (number)

81640384 is an even 8-digits composite number following 81640383 and preceding 81640385. In scientific notation, it is written as 8.1640384 × 10^7. The sum of its digits is 34. It has a total of 8 prime factors and 28 positive divisors. There are 34988544 positive integers (up to 81640384) that are relatively prime to 81640384.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand three hundred eighty-four

Notation

Scientific notation 8.1640384 × 10^7
Engineering notation 8.1640384 × 10^6

Prime Factorization of 81640384

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 7 × 182233

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 2551262
Product of the distinct prime numbers

The prime factorization of 81640384 is 2 × 2 × 2 × 2 × 2 × 2 × 7 × 182233. Since it has a total of 8 prime factors.

Most popular turbo-numbers

1, 6, 98, 36, 143, 460, 2215, 4846, 16041, 32036, 626092, 40299, 8439563, 6029537, 35649514, 86332314, 49453216, 260299702, 6008300190, 4088175434

Basic calculations (n = 81640384)

Multiplication

n×y
n×2 163280768
n×3 244921152
n×4 326561536
n×5 408201920

Division

n÷y
n÷2 40820192
n÷3 27213461.333333
n÷3 20410096
n÷5 16328076.8

Exponentiation

ny
n2 6665152299667456
n3 5.4414559316333E+23
n4 4.4424255177762E+31
n5 3.6268132516265E+39

Nth Root

y√n
2√n 9035.5068479859
3√n 433.81211827006
4√n 95.055283114543
5√n 38.227949863643

Divisors of 81640384

1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 182233, 364466, 728932, 1275631, 1457864, 2551262, 2915728, 5102524, 5831456, 10205048, 11662912, 20410096, 40820192, 81640384

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81640383
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640384 can be divided by 28 positive divisors. The sum of these divisors (counting 81640384) is 1, the average is 0.035714285714286.

Base conversion 81640384

Base System Value
2 Binary 100110111011011101111000000
3 Ternary 12200121202112221
4 Quaternary 10313123233000
5 Quinary 131344443014
6 Senary 12033500424
8 Octal 467335700
10 Decimal 81640384
12 Duodecimal 23411714
16 Hexadecimal 4ddbbc0
20 Vigesimal 15a50j4
36 Base36 1clu4g

Cryptographic Hash Functions

md5 6e971d65181f9c3358ebc574d10d13d6
sha1 e1f2f99389c6a59956bdba59ae241d346e2da9f9
sha256 04d032963041ddf46dc95472d1d9efc96852c4be308bab88797a489db3b67036
sha512 d27147b12ad795e462e537434a1a3a6b2e66933986aaeb888b2e667ad509e46c7ffe321007ad1aaadcdb91547a897ee8523d97f24fe7cd270e262fad9b460fb6
ripemd-160 05cf92c4e51dbf8becfe19969594263fc955497d

81640384 as geometric shapes

Circle

Radius = n
Diameter 163280768
Circumference 512961661.2213
Area 2.0939193499692E+16

Sphere

Radius = n
Volume 2.2793117306203E+24
Surface area 8.375677399877E+16
Circumference 512961661.2213

Square

Length = n
Perimeter 326561536
Area 6665152299667456
Diagonal 115456938.29015

Cube

Length = n
Surface area 39990913798004736
Volume 5.4414559316333E+23
Space diagonal 141405293.03743

Equilateral Triangle

Length = n
Perimeter 244921152
Area 2.8860956058021E+15
Altitude 70702646.518717

Triangular Pyramid

Length = n
Surface area 2.8860956058021E+15
Volume 6.4128173146428E+22
Height 38485646.096716