81306500 (number)

81306500 is an even 8-digits composite number following 81306499 and preceding 81306501. In scientific notation, it is written as 8.1306500 × 10^7. The sum of its digits is 23. It has a total of 6 prime factors and 48 positive divisors. There are 29564000 positive integers (up to 81306500) that are relatively prime to 81306500.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred six thousand five hundred

Notation

Scientific notation 8.1306500 × 10^7
Engineering notation 8.1306500 × 10^6

Prime Factorization of 81306500

Prime Factorization 2 × 2 × 11 × 5 × 25 × 14783

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40653250
Product of the distinct prime numbers

The prime factorization of 81306500 is 2 × 2 × 11 × 5 × 25 × 14783. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 7, 51, 81, 989, 270, 7625, 5112, 34948, 60727, 96939, 737410, 7803985, 94539, 71070674, 49574413, 612862708, 998346107, 7859111699, 287744883

Basic calculations (n = 81306500)

Multiplication

n×y
n×2 162613000
n×3 243919500
n×4 325226000
n×5 406532500

Division

n÷y
n÷2 40653250
n÷3 27102166.666667
n÷3 20326625
n÷5 16261300

Exponentiation

ny
n2 6610746942250000
n3 5.3749669626005E+23
n4 4.3701975134468E+31
n5 3.5532546412706E+39

Nth Root

y√n
2√n 9017.0117001144
3√n 433.2199242996
4√n 94.957947008739
5√n 38.196630481228

Divisors of 81306500

1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 5500, 14783, 29566, 59132, 73915, 147830, 162613, 295660, 325226, 369575, 650452, 739150, 813065, 1478300, 1626130, 1847875, 3252260, 3695750, 4065325, 7391500, 8130650, 16261300, 20326625, 40653250, 81306500

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81306499
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81306500 can be divided by 48 positive divisors. The sum of these divisors (counting 81306500) is 1, the average is 0.020833333333333.

Base conversion 81306500

Base System Value
2 Binary 100110110001010001110000100
3 Ternary 12122222210112212
4 Quaternary 10312022032010
5 Quinary 131303302000
6 Senary 12022402552
8 Octal 466121604
10 Decimal 81306500
12 Duodecimal 23290458
16 Hexadecimal 4d8a384
20 Vigesimal 1583650
36 Base36 1ceohw

Cryptographic Hash Functions

md5 2a3dedc5d236ce15a730280654ae37b1
sha1 b07a9fbe0ae4e844e3721772766cb95fa5d3deb6
sha256 64655bc45dc7382d7945fdb4e0fdacbc87dfd8e7ea559bf020354cfb22158124
sha512 5480eb591d3824bd5cecc6ceb853bcabd2e146c10b5211e1dd4033c3c0c94d6faca08ef1d2c0d7c46be967cb1b05ffee1940621d0f74fc90691d550170119051
ripemd-160 4854fba073e63b615db76a03abf7d419ea84ef3f

81306500 as geometric shapes

Circle

Radius = n
Diameter 162613000
Circumference 510863806.1782
Area 2.0768274028514E+16

Sphere

Radius = n
Volume 2.2514608963991E+24
Surface area 8.3073096114055E+16
Circumference 510863806.1782

Square

Length = n
Perimeter 325226000
Area 6610746942250000
Diagonal 114984755.00909

Cube

Length = n
Surface area 39664481653500000
Volume 5.3749669626005E+23
Space diagonal 140826988.9856

Equilateral Triangle

Length = n
Perimeter 243919500
Area 2.8625373949894E+15
Altitude 70413494.492799

Triangular Pyramid

Length = n
Surface area 2.8625373949894E+15
Volume 6.3344593131808E+22
Height 38328251.669696