81492893 (number)

81492893 is an odd 8-digits composite number following 81492892 and preceding 81492894. In scientific notation, it is written as 8.1492893 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 77781600 positive integers (up to 81492893) that are relatively prime to 81492893.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-two thousand eight hundred ninety-three

Notation

Scientific notation 8.1492893 × 10^7
Engineering notation 8.1492893 × 10^6

Prime Factorization of 81492893

Prime Factorization 73 × 31 × 36011

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81492893
Product of the distinct prime numbers

The prime factorization of 81492893 is 73 × 31 × 36011. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81492893)

Multiplication

n×y
n×2 162985786
n×3 244478679
n×4 325971572
n×5 407464465

Division

n÷y
n÷2 40746446.5
n÷3 27164297.666667
n÷3 20373223.25
n÷5 16298578.6

Exponentiation

ny
n2 6641091609509449
n3 5.4120176793695E+23
n4 4.4104097765897E+31
n5 3.5941705200978E+39

Nth Root

y√n
2√n 9027.3414137275
3√n 433.55072005276
4√n 95.012322430975
5√n 38.214127397039

Divisors of 81492893

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81492892
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81492893 can be divided by 8 positive divisors. The sum of these divisors (counting 81492893) is 1, the average is 0.125.

Base conversion 81492893

Base System Value
2 Binary 100110110110111101110011101
3 Ternary 12200100021020022
4 Quaternary 10312313232131
5 Quinary 131330233033
6 Senary 12030401525
8 Octal 466675635
10 Decimal 81492893
12 Duodecimal 233602a5
16 Hexadecimal 4db7b9d
20 Vigesimal 1596c4d
36 Base36 1ciobh

Cryptographic Hash Functions

md5 ce5a089d9fc19daf55f1b29e7a756bac
sha1 73d194099f5107962f0b155d0bf582e8c9291569
sha256 13c0b1b6b06491480c2db5780d950f64a42db13dfc4ee1601930ec4a3fc96533
sha512 9460856692d98cbabfc2459fb6072e0e23169a10339376a2c5c5ea48ef73abea5ea9fbbaffabc664e06188f0c7eaac8ebf3ca7023bbdad50df7202d491c76805
ripemd-160 d6819204df8d31c0f931719c01537debd13a04b4

81492893 as geometric shapes

Circle

Radius = n
Diameter 162985786
Circumference 512034947.93716
Area 2.0863604612252E+16

Sphere

Radius = n
Volume 2.2669806643474E+24
Surface area 8.3454418449007E+16
Circumference 512034947.93716

Square

Length = n
Perimeter 325971572
Area 6641091609509449
Diagonal 115248354.51762

Cube

Length = n
Surface area 39846549657056694
Volume 5.4120176793695E+23
Space diagonal 141149831.13177

Equilateral Triangle

Length = n
Perimeter 244478679
Area 2.8756770213474E+15
Altitude 70574915.565887

Triangular Pyramid

Length = n
Surface area 2.8756770213474E+15
Volume 6.3781240016394E+22
Height 38416118.17254