81084685 (number)

81084685 is an odd 8-digits composite number following 81084684 and preceding 81084686. In scientific notation, it is written as 8.1084685 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 32 positive divisors. There are 54043200 positive integers (up to 81084685) that are relatively prime to 81084685.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1084685 × 10^7
Engineering notation 8.1084685 × 10^6

Prime Factorization of 81084685

Prime Factorization 11 × 5 × 19 × 31 × 2503

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81084685
Product of the distinct prime numbers

The prime factorization of 81084685 is 11 × 5 × 19 × 31 × 2503. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 10, 100, 3, 7, 602, 7491, 3538, 66451, 45274, 533826, 786019, 935509, 854317, 36006336, 57756728, 479446553, 719026237, 7223171261, 9970769758

Basic calculations (n = 81084685)

Multiplication

n×y
n×2 162169370
n×3 243254055
n×4 324338740
n×5 405423425

Division

n÷y
n÷2 40542342.5
n÷3 27028228.333333
n÷3 20271171.25
n÷5 16216937

Exponentiation

ny
n2 6574726141549225
n3 5.3310959814878E+23
n4 4.3227023836371E+31
n5 3.5050496112596E+39

Nth Root

y√n
2√n 9004.7034931751
3√n 432.82560487631
4√n 94.893116152728
5√n 38.175766598287

Divisors of 81084685

1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 589, 1045, 1705, 2503, 2945, 6479, 12515, 27533, 32395, 47557, 77593, 137665, 237785, 387965, 523127, 853523, 1474267, 2615635, 4267615, 7371335, 16216937, 81084685

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 -81084684
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 81084685 can be divided by 32 positive divisors. The sum of these divisors (counting 81084685) is 1, the average is 0.03125.

Base conversion 81084685

Base System Value
2 Binary 100110101010100000100001101
3 Ternary 12122120112021111
4 Quaternary 10311110010031
5 Quinary 131224202220
6 Senary 12013532021
8 Octal 465240415
10 Decimal 81084685
12 Duodecimal 231a4011
16 Hexadecimal 4d5410d
20 Vigesimal 156fbe5
36 Base36 1c9xcd

Cryptographic Hash Functions

md5 6fc1bcfab0d1369cfd38fa85eac45be5
sha1 b7349f37b7434c8e7560194b92cf48bd079cf53a
sha256 b4ba066398d8f087fb9154fa60f69a00a2e8eeb0caf1bc1e72ac853f1223545b
sha512 c5537ffdcf1d303726b4f5878018b862e690071befd1ef02c160553754a1e138df1181559ee65c9c82a5c95db398b8effa8eced25d175f3c2215f35f9d3ccd84
ripemd-160 bfe0c8b732ff6db3ce6ca62577e771122bc646fe

81084685 as geometric shapes

Circle

Radius = n
Diameter 162169370
Circumference 509470101.42928
Area 2.0655111345656E+16

Sphere

Radius = n
Volume 2.2330842628032E+24
Surface area 8.2620445382623E+16
Circumference 509470101.42928

Square

Length = n
Perimeter 324338740
Area 6574726141549225
Diagonal 114671061.22775

Cube

Length = n
Surface area 39448356849295350
Volume 5.3310959814878E+23
Space diagonal 140442794.13572

Equilateral Triangle

Length = n
Perimeter 243254055
Area 2.8469399307536E+15
Altitude 70221397.067859

Triangular Pyramid

Length = n
Surface area 2.8469399307536E+15
Volume 6.2827568661107E+22
Height 38223687.075917