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

81489 (number)

81489 is an odd 5-digits composite number following 81488 and preceding 81490. In scientific notation, it is written as 8.1489 × 10^4. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 51920 positive integers (up to 81489) that are relatively prime to 81489.

Interesting facts

81489 has 8 divisors, whose sum is 113472
The reverse of 81489 is 98418
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one thousand four hundred eighty-nine

Notation

Scientific notation	8.1489 × 10^4
Engineering notation	8.1489 × 10^3

Prime Factorization of 81489

Prime Factorization 3 × 23 × 1181

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489	Product of the distinct prime numbers

The prime factorization of 81489 is 3 × 23 × 1181. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 7, 62, 68, 190, 565, 7362, 9572, 13174, 30910, 244530, 840941, 6902773, 2798685, 70145906, 52225602, 986798762, 37010442, 7431384986, 6154397704

Basic calculations (n = 81489)

Multiplication

n×y

n×2	162978
n×3	244467
n×4	325956
n×5	407445

Division

n÷y

n÷2	40744.5
n÷3	27163
n÷3	20372.25
n÷5	16297.8

Exponentiation

n^y

n²	6640457121
n³	541124210333169
n⁴	4.409567077584E+19
n⁵	3.5933121158524E+24

Nth Root

^y√n

²√n	285.46278216258
³√n	43.354381622034
⁴√n	16.895643881267
⁵√n	9.5988630979027

Divisors of 81489

1, 3, 23, 69, 1181, 3543, 27163, 81489

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81488	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489 can be divided by 8 positive divisors. The sum of these divisors (counting 81489) is 1, the average is 0.125.

Base conversion 81489

Base	System	Value
2	Binary	10011111001010001
3	Ternary	11010210010
4	Quaternary	103321101
5	Quinary	10101424
6	Senary	1425133
8	Octal	237121
10	Decimal	81489
12	Duodecimal	3b1a9
16	Hexadecimal	13e51
20	Vigesimal	a3e9
36	Base36	1qvl

Cryptographic Hash Functions

md5	d4e238509268feb6bacff616f13ab2d7
sha1	348aa4e1d50a301459f64d6d28af6e6ef15e024c
sha256	db20ee4cd0442b30fdbd4b2d5f1854fa3b291270007e964967879ef26e04c6b3
sha512	2f8311a9ae63d201442d0bbddce1cb29f5bff0bb7b8c226cefbf0c5268aa0c4860755bf84700bb529eb80b0cf8f0c934cf48da1f154761949af671e3237cb086
ripemd-160	17778948d300ac200225610157b86f36cb208d73

81489 as geometric shapes

Circle

Radius = n

Diameter	162978
Circumference	512010.48749676
Area	20861611307.812

Sphere

Radius = n

Volume	2.2666557918163E+15
Surface area	83446445231.247
Circumference	512010.48749676

Square

Length = n

Perimeter	325956
Area	6640457121
Diagonal	115242.84898422

Cube

Length = n

Surface area	39842742726
Volume	541124210333169
Space diagonal	141143.08825798

Equilateral Triangle

Length = n

Perimeter	244467
Area	2875402279.7636
Altitude	70571.54412899

Triangular Pyramid

Length = n

Surface area	2875402279.7636
Volume	63772099765133
Height	38414.28299474