Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81288 (number)

81288 is an even 5-digits composite number following 81287 and preceding 81289. In scientific notation, it is written as 8.1288 × 10^4. The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors. There are 27072 positive integers (up to 81288) that are relatively prime to 81288.

Interesting facts

81288 has 16 divisors, whose sum is 169500
The reverse of 81288 is 88218
Previous prime number is 9

Basic properties

Is Prime? no
Number parity even
Number length 5
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one thousand two hundred eighty-eight

Notation

Scientific notation	8.1288 × 10^4
Engineering notation	8.1288 × 10^3

Prime Factorization of 81288

Prime Factorization 2 × 2 × 2 × 9 × 1129

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	20322	Product of the distinct prime numbers

The prime factorization of 81288 is 2 × 2 × 2 × 9 × 1129. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 8, 31, 78, 436, 233, 7121, 5825, 41623, 85141, 30674, 119843, 6620396, 657156, 25297794, 59108797, 491584280, 468760352, 3534221567, 8247013444

Basic calculations (n = 81288)

Multiplication

n×y

n×2	162576
n×3	243864
n×4	325152
n×5	406440

Division

n÷y

n÷2	40644
n÷3	27096
n÷3	20322
n÷5	16257.6

Exponentiation

n^y

n²	6607738944
n³	537129883279872
n⁴	4.3662213952054E+19
n⁵	3.5492140477346E+24

Nth Root

^y√n

²√n	285.1105048924
³√n	43.318706437434
⁴√n	16.885215571393
⁵√n	9.5941231259002

Divisors of 81288

1, 2, 4, 8, 9, 18, 36, 72, 1129, 2258, 4516, 9032, 10161, 20322, 40644, 81288

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	-81287	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 81288 can be divided by 16 positive divisors. The sum of these divisors (counting 81288) is 1, the average is 0.0625.

Base conversion 81288

Base	System	Value
2	Binary	10011110110001000
3	Ternary	11010111200
4	Quaternary	103312020
5	Quinary	10100123
6	Senary	1424200
8	Octal	236610
10	Decimal	81288
12	Duodecimal	3b060
16	Hexadecimal	13d88
20	Vigesimal	a348
36	Base36	1qq0

Cryptographic Hash Functions

md5	bf7135954dd76b3d4bcc06f3353353f4
sha1	2c34e960f186eada02ef4464f0315cd00d001758
sha256	209fef7e31164a408ab1f81ba09718da8864ae498a7d8acc21304f3d48bb790d
sha512	2b69743ff32744d6a4554261798cb814fc61459ba8abbfbed0761d9548431ef2e7dfd3c894528e3b2b15b218da47420aaf83b6d5b3486e8aae33e6b2c4cc7ea3
ripemd-160	7467876ed96cb0868cd0af890e41f2042482994e

81288 as geometric shapes

Circle

Radius = n

Diameter	162576
Circumference	510747.56725001
Area	20758824123.31

Sphere

Radius = n

Volume	2.2499243937808E+15
Surface area	83035296493.238
Circumference	510747.56725001

Square

Length = n

Perimeter	325152
Area	6607738944
Diagonal	114958.59205818

Cube

Length = n

Surface area	39646433664
Volume	537129883279872
Space diagonal	140794.94604566

Equilateral Triangle

Length = n

Perimeter	243864
Area	2861234893.5399
Altitude	70397.473022829

Triangular Pyramid

Length = n

Surface area	2861234893.5399
Volume	63301363807523
Height	38319.530686061