81738493 (number)

81738493 is an odd 8-digits composite number following 81738492 and preceding 81738494. In scientific notation, it is written as 8.1738493 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 81674460 positive integers (up to 81738493) that are relatively prime to 81738493.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-eight thousand four hundred ninety-three

Notation

Scientific notation 8.1738493 × 10^7
Engineering notation 8.1738493 × 10^6

Prime Factorization of 81738493

Prime Factorization 1303 × 62731

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81738493
Product of the distinct prime numbers

The prime factorization of 81738493 is 1303 × 62731. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 4, 63, 97, 106, 689, 5749, 7090, 29938, 39721, 618864, 658241, 7519400, 9781787, 73911902, 59578037, 858341185, 244179970, 5151981948, 2327739994

Basic calculations (n = 81738493)

Multiplication

n×y
n×2 163476986
n×3 245215479
n×4 326953972
n×5 408692465

Division

n÷y
n÷2 40869246.5
n÷3 27246164.333333
n÷3 20434623.25
n÷5 16347698.6

Exponentiation

ny
n2 6681181237911049
n3 5.4610968584672E+23
n4 4.4638182733815E+31
n5 3.6486577869206E+39

Nth Root

y√n
2√n 9040.9342990645
3√n 433.98582248207
4√n 95.083827747228
5√n 38.237133319729

Divisors of 81738493

1, 1303, 62731, 81738493

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81738492
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81738493 can be divided by 4 positive divisors. The sum of these divisors (counting 81738493) is 1, the average is 0.25.

Base conversion 81738493

Base System Value
2 Binary 100110111110011101011111101
3 Ternary 12200210202010121
4 Quaternary 10313303223331
5 Quinary 131411112433
6 Senary 12035534541
8 Octal 467635375
10 Decimal 81738493
12 Duodecimal 2345a451
16 Hexadecimal 4df3afd
20 Vigesimal 15ah64d
36 Base36 1cnxtp

Cryptographic Hash Functions

md5 6eb5ff1782897fde004f9b3e162db3e7
sha1 9827b3b970c28d6dc856737d97e3dd7c63319a7f
sha256 29b6768f4ec2c96950bf434f3aacb2c83d25fa71aaeb01783563e48831ae8ce4
sha512 61872b9d6bb959c63bcf17801485a51dd71f601b0b94ee26c53a63946c467cdd42ddfa8e8866871fa6505ec3283268b856c4a237beb310322aca8e5a8161ac0b
ripemd-160 58bfbbcf91d8508f50fc6b4103819903d022e918

81738493 as geometric shapes

Circle

Radius = n
Diameter 163476986
Circumference 513578098.2486
Area 2.0989549894323E+16

Sphere

Radius = n
Volume 2.2875389028137E+24
Surface area 8.3958199577293E+16
Circumference 513578098.2486

Square

Length = n
Perimeter 326953972
Area 6681181237911049
Diagonal 115595685.36854

Cube

Length = n
Surface area 40087087427466294
Volume 5.4610968584672E+23
Space diagonal 141575222.81011

Equilateral Triangle

Length = n
Perimeter 245215479
Area 2.8930363396595E+15
Altitude 70787611.405057

Triangular Pyramid

Length = n
Surface area 2.8930363396595E+15
Volume 6.4359643688979E+22
Height 38531895.122846