81232018 (number)

81232018 is an even 8-digits composite number following 81232017 and preceding 81232019. In scientific notation, it is written as 8.1232018 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 32765760 positive integers (up to 81232018) that are relatively prime to 81232018.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred thirty-two thousand eighteen

Notation

Scientific notation 8.1232018 × 10^7
Engineering notation 8.1232018 × 10^6

Prime Factorization of 81232018

Prime Factorization 2 × 7 × 17 × 341311

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81232018
Product of the distinct prime numbers

The prime factorization of 81232018 is 2 × 7 × 17 × 341311. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 10, 72, 25, 998, 348, 2353, 8330, 36162, 8928, 985635, 184893, 7752472, 2914732, 6849064, 84306024, 742726208, 695451645, 5633857099, 6730878927

Basic calculations (n = 81232018)

Multiplication

n×y
n×2 162464036
n×3 243696054
n×4 324928072
n×5 406160090

Division

n÷y
n÷2 40616009
n÷3 27077339.333333
n÷3 20308004.5
n÷5 16246403.6

Exponentiation

ny
n2 6598640748352324
n3 5.3602090404569E+23
n4 4.3542059725816E+31
n5 3.5370093794045E+39

Nth Root

y√n
2√n 9012.8806715722
3√n 433.08759808406
4√n 94.93619263259
5√n 38.189629799924

Divisors of 81232018

1, 2, 7, 14, 17, 34, 119, 238, 341311, 682622, 2389177, 4778354, 5802287, 11604574, 40616009, 81232018

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81232017
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81232018 can be divided by 16 positive divisors. The sum of these divisors (counting 81232018) is 1, the average is 0.0625.

Base conversion 81232018

Base System Value
2 Binary 100110101111000000010010010
3 Ternary 12122212000101021
4 Quaternary 10311320002102
5 Quinary 131243411033
6 Senary 12021030054
8 Octal 465700222
10 Decimal 81232018
12 Duodecimal 2325532a
16 Hexadecimal 4d78092
20 Vigesimal 157e00i
36 Base36 1cd30y

Cryptographic Hash Functions

md5 416fa2767f09f7fee594bbdec0c63284
sha1 293027dbb874e8c4759e34f237f60d056740f8a8
sha256 7c3a8d45ad536711850a5e5eba39cd65d25556d12616600bb96f7dbcda4a95ac
sha512 d1191547a30c3cfdc03548aff1cb70f65a2612d28302a1c01bba7918ba52cc8ce94bd4e1fb07fae76a314b3e85b9ad64f2aae8c566cdca6f45476acf5482ed87
ripemd-160 1b655e4ddf22cfda4ae655a2f44620ff64d0aaab

81232018 as geometric shapes

Circle

Radius = n
Diameter 162464036
Circumference 510395821.97015
Area 2.0730241298702E+16

Sphere

Radius = n
Volume 2.2452791124273E+24
Surface area 8.2920965194808E+16
Circumference 510395821.97015

Square

Length = n
Perimeter 324928072
Area 6598640748352324
Diagonal 114879421.55454

Cube

Length = n
Surface area 39591844490113944
Volume 5.3602090404569E+23
Space diagonal 140697982.37735

Equilateral Triangle

Length = n
Perimeter 243696054
Area 2.8572952592601E+15
Altitude 70348991.188675

Triangular Pyramid

Length = n
Surface area 2.8572952592601E+15
Volume 6.3170669351408E+22
Height 38293140.518178