81497968 (number)

81497968 is an even 8-digits composite number following 81497967 and preceding 81497969. In scientific notation, it is written as 8.1497968 × 10^7. The sum of its digits is 52. It has a total of 5 prime factors and 10 positive divisors. There are 40748976 positive integers (up to 81497968) that are relatively prime to 81497968.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand nine hundred sixty-eight

Notation

Scientific notation 8.1497968 × 10^7
Engineering notation 8.1497968 × 10^6

Prime Factorization of 81497968

Prime Factorization 2 × 2 × 2 × 2 × 5093623

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10187246
Product of the distinct prime numbers

The prime factorization of 81497968 is 2 × 2 × 2 × 2 × 5093623. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497968)

Multiplication

n×y
n×2 162995936
n×3 244493904
n×4 325991872
n×5 407489840

Division

n÷y
n÷2 40748984
n÷3 27165989.333333
n÷3 20374492
n÷5 16299593.6

Exponentiation

ny
n2 6641918788129024
n3 5.4130288485354E+23
n4 4.4115085188101E+31
n5 3.5952898009772E+39

Nth Root

y√n
2√n 9027.6224998612
3√n 433.55971970966
4√n 95.013801628296
5√n 38.214603344962

Divisors of 81497968

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497968 can be divided by 10 positive divisors. The sum of these divisors (counting 81497968) is 1, the average is 0.1.

Base conversion 81497968

Base System Value
2 Binary 100110110111000111101110000
3 Ternary 12200100112012021
4 Quaternary 10312320331300
5 Quinary 131330413333
6 Senary 12030441224
8 Octal 466707560
10 Decimal 81497968
12 Duodecimal 23363214
16 Hexadecimal 4db8f70
20 Vigesimal 15974i8
36 Base36 1cis8g

Cryptographic Hash Functions

md5 1446caa7538fc9edccb5ab9160bb2956
sha1 3611c11dd6c9e06793ecfe2637ec8c05f6adf49d
sha256 4fe38c916adacdca471f2028b959db852a4eefda83d1539f1436181926dd5b94
sha512 fe570848d30edd57dcb7db2162fdeedbc2d7cf75ed770b3b7c6c32c1a0b29b637f948e606d9e67e30082ef57948fec056b03a91d260f16c00936477cf8650c8a
ripemd-160 9274804ab333cf8c0abf9cfaecee9668c679b762

81497968 as geometric shapes

Circle

Radius = n
Diameter 162995936
Circumference 512066835.10259
Area 2.0866203270526E+16

Sphere

Radius = n
Volume 2.2674042218971E+24
Surface area 8.3464813082105E+16
Circumference 512066835.10259

Square

Length = n
Perimeter 325991872
Area 6641918788129024
Diagonal 115255531.65145

Cube

Length = n
Surface area 39851512728774144
Volume 5.4130288485354E+23
Space diagonal 141158621.28962

Equilateral Triangle

Length = n
Perimeter 244493904
Area 2.8760352001964E+15
Altitude 70579310.644811

Triangular Pyramid

Length = n
Surface area 2.8760352001964E+15
Volume 6.3793156759296E+22
Height 38418510.550483