81496720 (number)

81496720 is an even 8-digits composite number following 81496719 and preceding 81496721. In scientific notation, it is written as 8.1496720 × 10^7. The sum of its digits is 37. It has a total of 6 prime factors and 20 positive divisors. There are 32598656 positive integers (up to 81496720) that are relatively prime to 81496720.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-six thousand seven hundred twenty

Notation

Scientific notation 8.1496720 × 10^7
Engineering notation 8.1496720 × 10^6

Prime Factorization of 81496720

Prime Factorization 2 × 2 × 2 × 2 × 5 × 1018709

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10187090
Product of the distinct prime numbers

The prime factorization of 81496720 is 2 × 2 × 2 × 2 × 5 × 1018709. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 3, 40, 35, 778, 889, 7521, 8105, 90038, 65028, 402339, 945124, 6490926, 5268568, 32316080, 88178558, 696508075, 103527112, 4663064709, 4124013580

Basic calculations (n = 81496720)

Multiplication

n×y
n×2 162993440
n×3 244490160
n×4 325986880
n×5 407483600

Division

n÷y
n÷2 40748360
n÷3 27165573.333333
n÷3 20374180
n÷5 16299344

Exponentiation

ny
n2 6641715370758400
n3 5.4127801789039E+23
n4 4.4112383066168E+31
n5 3.5950145312763E+39

Nth Root

y√n
2√n 9027.5533784077
3√n 433.5575066267
4√n 95.013437883321
5√n 38.214486306174

Divisors of 81496720

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1018709, 2037418, 4074836, 5093545, 8149672, 10187090, 16299344, 20374180, 40748360, 81496720

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81496719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81496720 can be divided by 20 positive divisors. The sum of these divisors (counting 81496720) is 1, the average is 0.05.

Base conversion 81496720

Base System Value
2 Binary 100110110111000101010010000
3 Ternary 12200100110111001
4 Quaternary 10312320222100
5 Quinary 131330343340
6 Senary 12030431344
8 Octal 466705220
10 Decimal 81496720
12 Duodecimal 23362554
16 Hexadecimal 4db8a90
20 Vigesimal 15971g0
36 Base36 1cir9s

Cryptographic Hash Functions

md5 000f72612c0116b8c1a218aae9d5a598
sha1 741488773155c10bfe24db2676771cc419b9cf23
sha256 3fa4747cfdd5983b1e1e753d2e223246ecf9f026f87d52287ec4e67156cf4043
sha512 0f7f10214f3d05d9dafb923518fafac507e90b102b744a825b1440d1b499cbb55dae6d3419ff7a7d0bc58c3bd98c186504a2e4c310eb618b612523a9bb29570b
ripemd-160 af084c532370438e9a50bd0891d41bae336a2ee5

81496720 as geometric shapes

Circle

Radius = n
Diameter 162993440
Circumference 512058993.68733
Area 2.0865564216009E+16

Sphere

Radius = n
Volume 2.2673000594055E+24
Surface area 8.3462256864036E+16
Circumference 512058993.68733

Square

Length = n
Perimeter 325986880
Area 6641715370758400
Diagonal 115253766.71292

Cube

Length = n
Surface area 39850292224550400
Volume 5.4127801789039E+23
Space diagonal 141156459.69021

Equilateral Triangle

Length = n
Perimeter 244490160
Area 2.8759471178912E+15
Altitude 70578229.845107

Triangular Pyramid

Length = n
Surface area 2.8759471178912E+15
Volume 6.3790226159585E+22
Height 38417922.237641