81574540 (number)

81574540 is an even 8-digits composite number following 81574539 and preceding 81574541. In scientific notation, it is written as 8.1574540 × 10^7. The sum of its digits is 34. It has a total of 5 prime factors and 24 positive divisors. There are 32589120 positive integers (up to 81574540) that are relatively prime to 81574540.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred seventy-four thousand five hundred forty

Notation

Scientific notation 8.1574540 × 10^7
Engineering notation 8.1574540 × 10^6

Prime Factorization of 81574540

Prime Factorization 2 × 2 × 5 × 997 × 4091

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40787270
Product of the distinct prime numbers

The prime factorization of 81574540 is 2 × 2 × 5 × 997 × 4091. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 5, 26, 9, 972, 942, 2090, 4658, 76726, 76100, 446756, 380969, 3261364, 8588679, 77844249, 63087732, 877428229, 707255117, 283596885, 3428296773

Basic calculations (n = 81574540)

Multiplication

n×y
n×2 163149080
n×3 244723620
n×4 326298160
n×5 407872700

Division

n÷y
n÷2 40787270
n÷3 27191513.333333
n÷3 20393635
n÷5 16314908

Exponentiation

ny
n2 6654405576211600
n3 5.428300738529E+23
n4 4.4281113572716E+31
n5 3.6122114703821E+39

Nth Root

y√n
2√n 9031.8624878814
3√n 433.69546192013
4√n 95.036111493902
5√n 38.221781608611

Divisors of 81574540

1, 2, 4, 5, 10, 20, 997, 1994, 3988, 4091, 4985, 8182, 9970, 16364, 19940, 20455, 40910, 81820, 4078727, 8157454, 16314908, 20393635, 40787270, 81574540

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81574539
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81574540 can be divided by 24 positive divisors. The sum of these divisors (counting 81574540) is 1, the average is 0.041666666666667.

Base conversion 81574540

Base System Value
2 Binary 100110111001011101010001100
3 Ternary 12200111102020021
4 Quaternary 10313023222030
5 Quinary 131340341130
6 Senary 12032231524
8 Octal 467135214
10 Decimal 81574540
12 Duodecimal 2339b5a4
16 Hexadecimal 4dcba8c
20 Vigesimal 159gg70
36 Base36 1ckfbg

Cryptographic Hash Functions

md5 041f800ced52aa4240b711c1bf505703
sha1 637251152d0baf31aa9635ad5f5b389d8324c4b6
sha256 07a34e7ad013d8bbd3a2725b173fcc38ba4a94e43ef981c2fad64a3beb83842b
sha512 d7fd450183a4dbaae84d4d34bbb54218222dae1de1227b2f08df8843365dc8c2e2f9037e099a0de89e3fd611bce5827938329b220cb52a75c68fc04451351873
ripemd-160 96777329b5bc5a09ab6248bbc52b734afad2c45b

81574540 as geometric shapes

Circle

Radius = n
Diameter 163149080
Circumference 512547951.16793
Area 2.0905431672233E+16

Sphere

Radius = n
Volume 2.2738012962185E+24
Surface area 8.3621726688933E+16
Circumference 512547951.16793

Square

Length = n
Perimeter 326298160
Area 6654405576211600
Diagonal 115363820.81235

Cube

Length = n
Surface area 39926433457269600
Volume 5.428300738529E+23
Space diagonal 141291247.88406

Equilateral Triangle

Length = n
Perimeter 244723620
Area 2.881442138042E+15
Altitude 70645623.94203

Triangular Pyramid

Length = n
Surface area 2.881442138042E+15
Volume 6.3973137708896E+22
Height 38454606.937449