81304842 (number)

81304842 is an even 8-digits composite number following 81304841 and preceding 81304843. In scientific notation, it is written as 8.1304842 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 26903520 positive integers (up to 81304842) that are relatively prime to 81304842.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred four thousand eight hundred forty-two

Notation

Scientific notation 8.1304842 × 10^7
Engineering notation 8.1304842 × 10^6

Prime Factorization of 81304842

Prime Factorization 2 × 3 × 98911 × 137

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81304842
Product of the distinct prime numbers

The prime factorization of 81304842 is 2 × 3 × 98911 × 137. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 68, 35, 811, 749, 254, 4778, 93676, 98571, 83473, 547839, 432789, 939910, 19262669, 69855325, 928178715, 24425750, 8221154274, 8309506033

Basic calculations (n = 81304842)

Multiplication

n×y
n×2 162609684
n×3 243914526
n×4 325219368
n×5 406524210

Division

n÷y
n÷2 40652421
n÷3 27101614
n÷3 20326210.5
n÷5 16260968.4

Exponentiation

ny
n2 6610477332644964
n3 5.3746381507528E+23
n4 4.3698410565413E+31
n5 3.552892366672E+39

Nth Root

y√n
2√n 9016.9197623135
3√n 433.21697954317
4√n 94.95746291005
5√n 38.196474699021

Divisors of 81304842

1, 2, 3, 6, 137, 274, 411, 822, 98911, 197822, 296733, 593466, 13550807, 27101614, 40652421, 81304842

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81304841
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81304842 can be divided by 16 positive divisors. The sum of these divisors (counting 81304842) is 1, the average is 0.0625.

Base conversion 81304842

Base System Value
2 Binary 100110110001001110100001010
3 Ternary 12122222201021110
4 Quaternary 10312021310022
5 Quinary 131303223332
6 Senary 12022351150
8 Octal 466116412
10 Decimal 81304842
12 Duodecimal 2328b4b6
16 Hexadecimal 4d89d0a
20 Vigesimal 1583222
36 Base36 1cen7u

Cryptographic Hash Functions

md5 d56e1c1ff68a9cc00940ed2d5ada63b4
sha1 6bea84e1f5beacb622fb60bf25aaad7a4fd08f55
sha256 6da91687611be815e88ef1fd3a643d63da729e34b8d9f0407e1853f10a3c0b24
sha512 3dad627623b83164814ae5d8a47feb55561b8a6f7d2423947a0c754979d9aa79766153abc4105868818c440affc3a14d78d0b7a43c12e905f945263cb73b315f
ripemd-160 5096e6ed347300bdc6616e74dd390f68997b968a

81304842 as geometric shapes

Circle

Radius = n
Diameter 162609684
Circumference 510853388.65696
Area 2.0767427024959E+16

Sphere

Radius = n
Volume 2.2513231640145E+24
Surface area 8.3069708099837E+16
Circumference 510853388.65696

Square

Length = n
Perimeter 325219368
Area 6610477332644964
Diagonal 114982410.243

Cube

Length = n
Surface area 39662863995869784
Volume 5.3746381507528E+23
Space diagonal 140824117.24536

Equilateral Triangle

Length = n
Perimeter 243914526
Area 2.8624206506059E+15
Altitude 70412058.62268

Triangular Pyramid

Length = n
Surface area 2.8624206506059E+15
Volume 6.3340718047021E+22
Height 38327470.081001