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

81369 (number)

81369 is an odd 5-digits composite number following 81368 and preceding 81370. In scientific notation, it is written as 8.1369 × 10^4. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54240 positive integers (up to 81369) that are relatively prime to 81369.

Interesting facts

81369 has 4 divisors, whose sum is 90420
The reverse of 81369 is 96318
Previous prime number is 9

Basic properties

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

Name

Name	eighty-one thousand three hundred sixty-nine

Notation

Scientific notation	8.1369 × 10^4
Engineering notation	8.1369 × 10^3

Prime Factorization of 81369

Prime Factorization 9 × 9041

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81369	Product of the distinct prime numbers

The prime factorization of 81369 is 9 × 9041. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 46, 22, 732, 644, 9212, 549, 51384, 83413, 199061, 905596, 6751319, 872037, 85814788, 15875838, 194656501, 630433939, 5987607500, 3078662565

Basic calculations (n = 81369)

Multiplication

n×y

n×2	162738
n×3	244107
n×4	325476
n×5	406845

Division

n÷y

n÷2	40684.5
n÷3	27123
n÷3	20342.25
n÷5	16273.8

Exponentiation

n^y

n²	6620914161
n³	538737164366409
n⁴	4.383650432733E+19
n⁵	3.5669325206105E+24

Nth Root

^y√n

²√n	285.25251970842
³√n	43.333090070955
⁴√n	16.889420348503
⁵√n	9.5960343905641

Divisors of 81369

1, 9, 9041, 81369

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81368	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81369 can be divided by 4 positive divisors. The sum of these divisors (counting 81369) is 1, the average is 0.25.

Base conversion 81369

Base	System	Value
2	Binary	10011110111011001
3	Ternary	11010121200
4	Quaternary	103313121
5	Quinary	10100434
6	Senary	1424413
8	Octal	236731
10	Decimal	81369
12	Duodecimal	3b109
16	Hexadecimal	13dd9
20	Vigesimal	a389
36	Base36	1qs9

Cryptographic Hash Functions

md5	b8d1494e4aa117ab746f21dfb081b22d
sha1	2420169d4d4ba105e9917e6172478d32e77f9702
sha256	02a965b26ad5ff9773ac797057da01084d14b844de1166d027241c66c2513c39
sha512	e04055486da370e9cbae6985aa59ed6b867103703091c8d48b6de55677cdd6bc01f75f8b790e5a209b1417ccb8f5b9517a0b6de5d413bf79dfa4e234d5f4588d
ripemd-160	34343bcce64875dcd68a6313c4f8d3398d80ff96

81369 as geometric shapes

Circle

Radius = n

Diameter	162738
Circumference	511256.5052599
Area	20800215288.246

Sphere

Radius = n

Volume	2.2566569570524E+15
Surface area	83200861152.985
Circumference	511256.5052599

Square

Length = n

Perimeter	325476
Area	6620914161
Diagonal	115073.14335674

Cube

Length = n

Surface area	39725484966
Volume	538737164366409
Space diagonal	140935.24216107

Equilateral Triangle

Length = n

Perimeter	244107
Area	2866939929.8511
Altitude	70467.621080536

Triangular Pyramid

Length = n

Surface area	2866939929.8511
Volume	63490783700117
Height	38357.714452245