81665514 (number)

81665514 is an even 8-digits composite number following 81665513 and preceding 81665515. In scientific notation, it is written as 8.1665514 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 22788864 positive integers (up to 81665514) that are relatively prime to 81665514.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred sixty-five thousand five hundred fourteen

Notation

Scientific notation 8.1665514 × 10^7
Engineering notation 8.1665514 × 10^6

Prime Factorization of 81665514

Prime Factorization 2 × 9 × 43 × 7 × 15073

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81665514
Product of the distinct prime numbers

The prime factorization of 81665514 is 2 × 9 × 43 × 7 × 15073. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 1, 12, 45, 733, 693, 5123, 7634, 63523, 42255, 645873, 279668, 4533051, 6244705, 72430980, 62317108, 464124668, 356100364, 5929576189, 9433525369

Basic calculations (n = 81665514)

Multiplication

n×y
n×2 163331028
n×3 244996542
n×4 326662056
n×5 408327570

Division

n÷y
n÷2 40832757
n÷3 27221838
n÷3 20416378.5
n÷5 16333102.8

Exponentiation

ny
n2 6669256176884196
n3 5.4464823368292E+23
n4 4.4478977952908E+31
n5 3.6323985967189E+39

Nth Root

y√n
2√n 9036.8973657998
3√n 433.85662475744
4√n 95.0625970916
5√n 38.230302988585

Divisors of 81665514

1, 2, 7, 9, 14, 18, 43, 63, 86, 126, 301, 387, 602, 774, 2709, 5418, 15073, 30146, 105511, 135657, 211022, 271314, 648139, 949599, 1296278, 1899198, 4536973, 5833251, 9073946, 11666502, 40832757, 81665514

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 -81665513
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 81665514 can be divided by 32 positive divisors. The sum of these divisors (counting 81665514) is 1, the average is 0.03125.

Base conversion 81665514

Base System Value
2 Binary 100110111100001110111101010
3 Ternary 12200200001000200
4 Quaternary 10313201313222
5 Quinary 131401244024
6 Senary 12034213030
8 Octal 467416752
10 Decimal 81665514
12 Duodecimal 23424176
16 Hexadecimal 4de1dea
20 Vigesimal 15a83fe
36 Base36 1cmdii

Cryptographic Hash Functions

md5 19f37eed0eea04a55746a0934a76b327
sha1 4a027f9f55f699972e1f08610d0ac6478b06b066
sha256 f2937182b6675a0e208117caf2a51166ff691d111f8c713d2fac6fb4fd6ead84
sha512 13bdd4a15d02d20f450f892217c5f115efc5d55df636d571c8f3807a253c54cb793ecf2cbbb640697e7f0bcebd7f82a7dc6fc067d8c0e92c194920a05d908ba0
ripemd-160 6ee363028ab342f2984eb67ab91b15690c8cb90d

81665514 as geometric shapes

Circle

Radius = n
Diameter 163331028
Circumference 513119557.66807
Area 2.0952086210208E+16

Sphere

Radius = n
Volume 2.2814171863052E+24
Surface area 8.3808344840831E+16
Circumference 513119557.66807

Square

Length = n
Perimeter 326662056
Area 6669256176884196
Diagonal 115492477.47697

Cube

Length = n
Surface area 40015537061305176
Volume 5.4464823368292E+23
Space diagonal 141448819.47423

Equilateral Triangle

Length = n
Perimeter 244996542
Area 2.887872636764E+15
Altitude 70724409.737114

Triangular Pyramid

Length = n
Surface area 2.887872636764E+15
Volume 6.4187409899745E+22
Height 38497492.492323