81648488 (number)

81648488 is an even 8-digits composite number following 81648487 and preceding 81648489. In scientific notation, it is written as 8.1648488 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 8 positive divisors. There are 40824240 positive integers (up to 81648488) that are relatively prime to 81648488.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty-eight thousand four hundred eighty-eight

Notation

Scientific notation 8.1648488 × 10^7
Engineering notation 8.1648488 × 10^6

Prime Factorization of 81648488

Prime Factorization 2 × 2 × 2 × 10206061

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20412122
Product of the distinct prime numbers

The prime factorization of 81648488 is 2 × 2 × 2 × 10206061. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 3, 99, 98, 602, 187, 2769, 9289, 50593, 47920, 939139, 752592, 1284325, 5332901, 55034184, 89911035, 888561903, 677226606, 3314755560, 8809850220

Basic calculations (n = 81648488)

Multiplication

n×y
n×2 163296976
n×3 244945464
n×4 326593952
n×5 408242440

Division

n÷y
n÷2 40824244
n÷3 27216162.666667
n÷3 20412122
n÷5 16329697.6

Exponentiation

ny
n2 6666475592686144
n3 5.4430765243173E+23
n4 4.444189682788E+31
n5 3.6286136798484E+39

Nth Root

y√n
2√n 9035.9552898407
3√n 433.82647185716
4√n 95.057641932886
5√n 38.228708769935

Divisors of 81648488

1, 2, 4, 8, 10206061, 20412122, 40824244, 81648488

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 -81648487
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 81648488 can be divided by 8 positive divisors. The sum of these divisors (counting 81648488) is 1, the average is 0.125.

Base conversion 81648488

Base System Value
2 Binary 100110111011101101101101000
3 Ternary 12200122011200002
4 Quaternary 10313131231220
5 Quinary 131400222423
6 Senary 12034002132
8 Octal 467355550
10 Decimal 81648488
12 Duodecimal 23416348
16 Hexadecimal 4dddb68
20 Vigesimal 15a6148
36 Base36 1cm0dk

Cryptographic Hash Functions

md5 7111e7f05747872f1d249c0a4818c1f7
sha1 0e5367265b01da3485dddb38ec44bb21b422b1bf
sha256 ac6d4c2e77b1773d57f29aef25902f81287392d9336a161b27ec0715c940134d
sha512 4df4eacfc96510ab4c46ac18fe422a2d84e897dc4f2ae4d51c12c18caf5991c104455481a44821cabc8c594b48a6fd573ba33e16f16ec96bf48c6ef2bf3ecba9
ripemd-160 adcd358f75f385318d5881923af62f8f64776c8c

81648488 as geometric shapes

Circle

Radius = n
Diameter 163296976
Circumference 513012580.15503
Area 2.0943350747318E+16

Sphere

Radius = n
Volume 2.2799905628963E+24
Surface area 8.3773402989274E+16
Circumference 513012580.15503

Square

Length = n
Perimeter 326593952
Area 6666475592686144
Diagonal 115468399.07686

Cube

Length = n
Surface area 39998853556116864
Volume 5.4430765243173E+23
Space diagonal 141419329.57718

Equilateral Triangle

Length = n
Perimeter 244945464
Area 2.8866686084876E+15
Altitude 70709664.788589

Triangular Pyramid

Length = n
Surface area 2.8866686084876E+15
Volume 6.4147272014367E+22
Height 38489466.358952