81749320 (number)

81749320 is an even 8-digits composite number following 81749319 and preceding 81749321. In scientific notation, it is written as 8.1749320 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors. There are 32081920 positive integers (up to 81749320) that are relatively prime to 81749320.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand three hundred twenty

Notation

Scientific notation 8.1749320 × 10^7
Engineering notation 8.1749320 × 10^6

Prime Factorization of 81749320

Prime Factorization 2 × 2 × 2 × 5 × 53 × 38561

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20437330
Product of the distinct prime numbers

The prime factorization of 81749320 is 2 × 2 × 2 × 5 × 53 × 38561. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 3, 97, 25, 686, 741, 727, 9229, 33046, 58752, 46903, 111144, 7679930, 1585688, 70382860, 48002052, 158540151, 111516871, 4026402974, 6668483708

Basic calculations (n = 81749320)

Multiplication

n×y
n×2 163498640
n×3 245247960
n×4 326997280
n×5 408746600

Division

n÷y
n÷2 40874660
n÷3 27249773.333333
n÷3 20437330
n÷5 16349864

Exponentiation

ny
n2 6682951320462400
n3 5.463267260409E+23
n4 4.466183835167E+31
n5 3.651074915199E+39

Nth Root

y√n
2√n 9041.5330558484
3√n 434.00498341379
4√n 95.086976268301
5√n 38.23814623664

Divisors of 81749320

1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 38561, 77122, 154244, 192805, 308488, 385610, 771220, 1542440, 2043733, 4087466, 8174932, 10218665, 16349864, 20437330, 40874660, 81749320

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 -81749319
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 81749320 can be divided by 32 positive divisors. The sum of these divisors (counting 81749320) is 1, the average is 0.03125.

Base conversion 81749320

Base System Value
2 Binary 100110111110110010101001000
3 Ternary 12200211021222121
4 Quaternary 10313312111020
5 Quinary 131411434240
6 Senary 12040101024
8 Octal 467662510
10 Decimal 81749320
12 Duodecimal 23464774
16 Hexadecimal 4df6548
20 Vigesimal 15aid60
36 Base36 1co66g

Cryptographic Hash Functions

md5 3474cafb739c8c68be1037ace97662dd
sha1 ac8e3e4ec85589a539c3a2eb1bcc09044b4427af
sha256 47f036392a330e4914c9513d5b972cedb082c56ca8367d124765eabb7acac656
sha512 0decfdc50a54b25bdd27a50b140f6c1cff48cef26d7e884d54db7fef94da9d25aed8f64b701ff1a33ae2ea323dac7b74ce65380246508727a29303611d917076
ripemd-160 3ce59cb075ec6d93f4d3e2b86d3d1827f6c97dc2

81749320 as geometric shapes

Circle

Radius = n
Diameter 163498640
Circumference 513646126.29592
Area 2.0995110772663E+16

Sphere

Radius = n
Volume 2.2884480386532E+24
Surface area 8.3980443090652E+16
Circumference 513646126.29592

Square

Length = n
Perimeter 326997280
Area 6682951320462400
Diagonal 115610997.05878

Cube

Length = n
Surface area 40097707922774400
Volume 5.463267260409E+23
Space diagonal 141593975.72421

Equilateral Triangle

Length = n
Perimeter 245247960
Area 2.8938028078876E+15
Altitude 70796987.862103

Triangular Pyramid

Length = n
Surface area 2.8938028078876E+15
Volume 6.4385222121161E+22
Height 38536999.019593