81497872 (number)

81497872 is an even 8-digits composite number following 81497871 and preceding 81497873. In scientific notation, it is written as 8.1497872 × 10^7. The sum of its digits is 46. It has a total of 6 prime factors and 20 positive divisors. There are 40687488 positive integers (up to 81497872) that are relatively prime to 81497872.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand eight hundred seventy-two

Notation

Scientific notation 8.1497872 × 10^7
Engineering notation 8.1497872 × 10^6

Prime Factorization of 81497872

Prime Factorization 2 × 2 × 2 × 2 × 733 × 6949

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10187234
Product of the distinct prime numbers

The prime factorization of 81497872 is 2 × 2 × 2 × 2 × 733 × 6949. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81497872)

Multiplication

n×y
n×2 162995744
n×3 244493616
n×4 325991488
n×5 407489360

Division

n÷y
n÷2 40748936
n÷3 27165957.333333
n÷3 20374468
n÷5 16299574.4

Exponentiation

ny
n2 6641903140528384
n3 5.4130097198318E+23
n4 4.4114877328161E+31
n5 3.5952686257862E+39

Nth Root

y√n
2√n 9027.6171828451
3√n 433.55954947331
4√n 95.013773648062
5√n 38.214594342029

Divisors of 81497872

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497872 can be divided by 20 positive divisors. The sum of these divisors (counting 81497872) is 1, the average is 0.05.

Base conversion 81497872

Base System Value
2 Binary 100110110111000111100010000
3 Ternary 12200100112001201
4 Quaternary 10312320330100
5 Quinary 131330412442
6 Senary 12030440544
8 Octal 466707420
10 Decimal 81497872
12 Duodecimal 23363154
16 Hexadecimal 4db8f10
20 Vigesimal 15974dc
36 Base36 1cis5s

Cryptographic Hash Functions

md5 9364f0b95cc6d6aa59d8b114dcdcc199
sha1 c5d909e48369be583688f2c7979a34c45cc17114
sha256 3b5dac41dbea595d9ea16c92c04a4fbc362b6d9bbbc2caa193fc5e28bac9e3a8
sha512 af912a61f31135362c186a6f29c90c9eedd5af62963b11dfe0575b38f5d485519870fe9f3a0aa1ad96a1502c8745bbaec750bef2df95d5a0ccfc8df0a71ff170
ripemd-160 26061391de2f60eb948047e31a5bd5844ac93999

81497872 as geometric shapes

Circle

Radius = n
Diameter 162995744
Circumference 512066231.9168
Area 2.0866154112139E+16

Sphere

Radius = n
Volume 2.2673962092845E+24
Surface area 8.3464616448556E+16
Circumference 512066231.9168

Square

Length = n
Perimeter 325991488
Area 6641903140528384
Diagonal 115255395.88695

Cube

Length = n
Surface area 39851418843170304
Volume 5.4130097198318E+23
Space diagonal 141158455.01274

Equilateral Triangle

Length = n
Perimeter 244493616
Area 2.8760284245866E+15
Altitude 70579227.506372

Triangular Pyramid

Length = n
Surface area 2.8760284245866E+15
Volume 6.3792931325363E+22
Height 38418465.295649