81640504 (number)

81640504 is an even 8-digits composite number following 81640503 and preceding 81640505. In scientific notation, it is written as 8.1640504 × 10^7. The sum of its digits is 28. It has a total of 6 prime factors and 32 positive divisors. There are 36317920 positive integers (up to 81640504) that are relatively prime to 81640504.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1640504 × 10^7
Engineering notation 8.1640504 × 10^6

Prime Factorization of 81640504

Prime Factorization 2 × 2 × 2 × 11 × 47 × 19739

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20410126
Product of the distinct prime numbers

The prime factorization of 81640504 is 2 × 2 × 2 × 11 × 47 × 19739. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81640504)

Multiplication

n×y
n×2 163281008
n×3 244921512
n×4 326562016
n×5 408202520

Division

n÷y
n÷2 40820252
n÷3 27213501.333333
n÷3 20410126
n÷5 16328100.8

Exponentiation

ny
n2 6665171893374016
n3 5.4414799262169E+23
n4 4.4424516368223E+31
n5 3.626839906258E+39

Nth Root

y√n
2√n 9035.5134884521
3√n 433.81233081776
4√n 95.055318044032
5√n 38.227961101589

Divisors of 81640504

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81640503
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640504 can be divided by 32 positive divisors. The sum of these divisors (counting 81640504) is 1, the average is 0.03125.

Base conversion 81640504

Base System Value
2 Binary 100110111011011110000111000
3 Ternary 12200121202201101
4 Quaternary 10313123300320
5 Quinary 131344444004
6 Senary 12033501144
8 Octal 467336070
10 Decimal 81640504
12 Duodecimal 234117b4
16 Hexadecimal 4ddbc38
20 Vigesimal 15a5154
36 Base36 1clu7s

Cryptographic Hash Functions

md5 5a563a5bdab51003247eceef15ed08dc
sha1 594854dede765dbc6019a3ad8d373d07e616422e
sha256 4aed095b7d72a6ef06054d3db4e5066c82e07d644d73f411f895a40fd4b1e8f2
sha512 8aff4d4913a4e930f24d43a67522196dbc3f0097b155ce9845c863f2f8994ef597acbfb699a94b965a623e08745c694cced9e982ab9393c9768cad6025431b22
ripemd-160 e95e03e1b2d2aadf0efb3855cc6eec45e1f1d420

81640504 as geometric shapes

Circle

Radius = n
Diameter 163281008
Circumference 512962415.20354
Area 2.0939255055137E+16

Sphere

Radius = n
Volume 2.2793217814479E+24
Surface area 8.3757020220548E+16
Circumference 512962415.20354

Square

Length = n
Perimeter 326562016
Area 6665171893374016
Diagonal 115457107.99577

Cube

Length = n
Surface area 39991031360244096
Volume 5.4414799262169E+23
Space diagonal 141405500.88353

Equilateral Triangle

Length = n
Perimeter 244921512
Area 2.886104090126E+15
Altitude 70702750.441765

Triangular Pyramid

Length = n
Surface area 2.886104090126E+15
Volume 6.4128455925307E+22
Height 38485702.665258