81495909 (number)

81495909 is an odd 8-digits composite number following 81495908 and preceding 81495910. In scientific notation, it is written as 8.1495909 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 32 positive divisors. There are 46483200 positive integers (up to 81495909) that are relatively prime to 81495909.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-five thousand nine hundred nine

Notation

Scientific notation 8.1495909 × 10^7
Engineering notation 8.1495909 × 10^6

Prime Factorization of 81495909

Prime Factorization 3 × 11 × 3 × 3 × 17 × 16141

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 9055101
Product of the distinct prime numbers

The prime factorization of 81495909 is 3 × 11 × 3 × 3 × 17 × 16141. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 9, 94, 96, 140, 625, 3859, 4433, 2036, 17895, 738299, 149435, 9229280, 116385, 54955937, 83516704, 653553249, 996548632, 5833635818, 7234477598

Basic calculations (n = 81495909)

Multiplication

n×y
n×2 162991818
n×3 244487727
n×4 325983636
n×5 407479545

Division

n÷y
n÷2 40747954.5
n÷3 27165303
n÷3 20373977.25
n÷5 16299181.8

Exponentiation

ny
n2 6641583183736281
n3 5.412618587577E+23
n4 4.4110627186489E+31
n5 3.594835659123E+39

Nth Root

y√n
2√n 9027.5084602564
3√n 433.55606846533
4√n 95.01320150514
5√n 38.214410248949

Divisors of 81495909

1, 3, 9, 11, 17, 27, 33, 51, 99, 153, 187, 297, 459, 561, 1683, 5049, 16141, 48423, 145269, 177551, 274397, 435807, 532653, 823191, 1597959, 2469573, 3018367, 4793877, 7408719, 9055101, 27165303, 81495909

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81495908
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81495909 can be divided by 32 positive divisors. The sum of these divisors (counting 81495909) is 1, the average is 0.03125.

Base conversion 81495909

Base System Value
2 Binary 100110110111000011101100101
3 Ternary 12200100102101000
4 Quaternary 10312320131211
5 Quinary 131330332114
6 Senary 12030423513
8 Octal 466703545
10 Decimal 81495909
12 Duodecimal 23361b99
16 Hexadecimal 4db8765
20 Vigesimal 1596jf9
36 Base36 1ciqn9

Cryptographic Hash Functions

md5 5fc9fc925ff79b9675ea0e15a9cf5e55
sha1 f52ca4e32525153bb8a73792b17ba9695d6149fb
sha256 a5e4ccc50220214b62c479d2133fbb18a2f0022134f698dbf8740c83791be675
sha512 ffc83f1d6389f9f1f874f4c8817819cf78075cd219217e55c48ca3e3af92f4ed0f2305d06e9d728d5ff4d3f0ad3c384d0de1ea4ee5697ba97e2889fc2596d532
ripemd-160 fe969694cdb43b2034939e8a55baeb1c99b33153

81495909 as geometric shapes

Circle

Radius = n
Diameter 162991818
Circumference 512053898.02404
Area 2.0865148938231E+16

Sphere

Radius = n
Volume 2.2672323721887E+24
Surface area 8.3460595752926E+16
Circumference 512053898.02404

Square

Length = n
Perimeter 325983636
Area 6641583183736281
Diagonal 115252619.78572

Cube

Length = n
Surface area 39849499102417686
Volume 5.412618587577E+23
Space diagonal 141155054.99701

Equilateral Triangle

Length = n
Perimeter 244487727
Area 2.8758898792316E+15
Altitude 70577527.498505

Triangular Pyramid

Length = n
Surface area 2.8758898792316E+15
Volume 6.3788321787534E+22
Height 38417539.928575