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

81444 (number)

81444 is an even 5-digits composite number following 81443 and preceding 81445. In scientific notation, it is written as 8.1444 × 10^4. The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors. There are 24640 positive integers (up to 81444) that are relatively prime to 81444.

Interesting facts

81444 has 12 divisors, whose sum is 147084
The reverse of 81444 is 44418
Previous prime number is 33

Basic properties

Is Prime? no
Number parity even
Number length 5
Sum of Digits 21
Digital Root 3

Name

Name	eighty-one thousand four hundred forty-four

Notation

Scientific notation	8.1444 × 10^4
Engineering notation	8.1444 × 10^3

Prime Factorization of 81444

Prime Factorization 2 × 2 × 33 × 617

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	40722	Product of the distinct prime numbers

The prime factorization of 81444 is 2 × 2 × 33 × 617. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 20, 13, 647, 101, 3489, 8578, 40492, 4745, 21603, 192025, 6533538, 138920, 91893866, 85925130, 163609382, 375192608, 8358652986, 7013819365

Basic calculations (n = 81444)

Multiplication

n×y

n×2	162888
n×3	244332
n×4	325776
n×5	407220

Division

n÷y

n÷2	40722
n÷3	27148
n÷3	20361
n÷5	16288.8

Exponentiation

n^y

n²	6633125136
n³	540228243576384
n⁴	4.3998349069835E+19
n⁵	3.5834015416436E+24

Nth Root

^y√n

²√n	285.38395189639
³√n	43.346399741446
⁴√n	16.89331086248
⁵√n	9.5978027234138

Divisors of 81444

1, 2, 4, 33, 66, 132, 617, 1234, 2468, 20361, 40722, 81444

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81443	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444 can be divided by 12 positive divisors. The sum of these divisors (counting 81444) is 1, the average is 0.083333333333333.

Base conversion 81444

Base	System	Value
2	Binary	10011111000100100
3	Ternary	11010201110
4	Quaternary	103320210
5	Quinary	10101234
6	Senary	1425020
8	Octal	237044
10	Decimal	81444
12	Duodecimal	3b170
16	Hexadecimal	13e24
20	Vigesimal	a3c4
36	Base36	1quc

Cryptographic Hash Functions

md5	1a3f528a7f59019679c74f693310a5e1
sha1	600a9c25d080895a8ae08ba43ce2f7c94276f707
sha256	665d79a832d1c5d48e1cbd254cb2359788f6b1072d73869cd9566b0ca58e04d3
sha512	b865584132dadfa13b3d43a8af92b1e311f675021fb2e20c49e3bb4bb922a3d145b9718d5b42b37067894647d49f0a47e957843b7bf3a135b478b77396494ded
ripemd-160	344047cd4eca8c6437763a30e21e1274be98b75e

81444 as geometric shapes

Circle

Radius = n

Diameter	162888
Circumference	511727.74415793
Area	20838577197.599

Sphere

Radius = n

Volume	2.2629027750417E+15
Surface area	83354308790.398
Circumference	511727.74415793

Square

Length = n

Perimeter	325776
Area	6633125136
Diagonal	115179.20937391

Cube

Length = n

Surface area	39798750816
Volume	540228243576384
Space diagonal	141065.14597164

Equilateral Triangle

Length = n

Perimeter	244332
Area	2872227437.1286
Altitude	70532.57298582

Triangular Pyramid

Length = n

Surface area	2872227437.1286
Volume	63666509070227
Height	38393.069791305