81738405 (number)

81738405 is an odd 8-digits composite number following 81738404 and preceding 81738406. In scientific notation, it is written as 8.1738405 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 36564480 positive integers (up to 81738405) that are relatively prime to 81738405.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand four hundred five

Notation

Scientific notation 8.1738405 × 10^7
Engineering notation 8.1738405 × 10^6

Prime Factorization of 81738405

Prime Factorization 7 × 9 × 5 × 47 × 5521

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81738405
Product of the distinct prime numbers

The prime factorization of 81738405 is 7 × 9 × 5 × 47 × 5521. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81738405)

Multiplication

n×y
n×2 163476810
n×3 245215215
n×4 326953620
n×5 408692025

Division

n÷y
n÷2 40869202.5
n÷3 27246135
n÷3 20434601.25
n÷5 16347681

Exponentiation

ny
n2 6681166851944025
n3 5.4610792201678E+23
n4 4.4637990503516E+31
n5 3.6486381461625E+39

Nth Root

y√n
2√n 9040.9294323095
3√n 433.98566673837
4√n 95.083802155307
5√n 38.237125086474

Divisors of 81738405

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 -81738404
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 81738405 can be divided by 32 positive divisors. The sum of these divisors (counting 81738405) is 1, the average is 0.03125.

Base conversion 81738405

Base System Value
2 Binary 100110111110011101010100101
3 Ternary 12200210202000100
4 Quaternary 10313303222211
5 Quinary 131411112110
6 Senary 12035534313
8 Octal 467635245
10 Decimal 81738405
12 Duodecimal 2345a399
16 Hexadecimal 4df3aa5
20 Vigesimal 15ah605
36 Base36 1cnxr9

Cryptographic Hash Functions

md5 ce4cd89bb4b18e0823c3b02947d11f8e
sha1 1e5f2c3489dd852b4e611b79ed9acc8ac06a2fee
sha256 dfbcdd2f4a57529746c8f37f94ab11e773e769582d77a73e4c91c5909075b1b7
sha512 1b8f81ff8b7101cd094954cd6b14a6e2c3dd7c160df041237f14b2b38c21ee7eac2c22bd38e4fc3278b895d9bbcd8481cef11f0dede514ac1931bd47faecca4e
ripemd-160 9d104668f53fcca94e38f71ca129ede67dfd1385

81738405 as geometric shapes

Circle

Radius = n
Diameter 163476810
Circumference 513577545.32829
Area 2.0989504699475E+16

Sphere

Radius = n
Volume 2.2875315145001E+24
Surface area 8.39580187979E+16
Circumference 513577545.32829

Square

Length = n
Perimeter 326953620
Area 6681166851944025
Diagonal 115595560.91774

Cube

Length = n
Surface area 40087001111664150
Volume 5.4610792201678E+23
Space diagonal 141575070.38964

Equilateral Triangle

Length = n
Perimeter 245215215
Area 2.893030110353E+15
Altitude 70787535.194821

Triangular Pyramid

Length = n
Surface area 2.893030110353E+15
Volume 6.4359435819626E+22
Height 38531853.639248