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

81242009 (number)

81242009 is an odd 8-digits prime number following 81242008 and preceding 81242010. In scientific notation, it is written as 8.1242009 × 10^7. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 81242008 positive integers (up to 81242009) that are relatively prime to 81242009.

Interesting facts

81242009 has 2 divisors, whose sum is 81242010
The reverse of 81242009 is 90024218
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	eighty-one million two hundred forty-two thousand nine

Notation

Scientific notation	8.1242009 × 10^7
Engineering notation	8.1242009 × 10^6

Prime Factorization of 81242009

Prime Factorization 81242009

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81242009	Product of the distinct prime numbers

The prime factorization of 81242009 is 81242009. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 7, 97, 23, 51, 555, 6650, 8388, 46220, 13626, 155242, 774774, 8878023, 9174282, 42886956, 34244559, 787275305, 894041111, 3766264091, 8719021845

Basic calculations (n = 81242009)

Multiplication

n×y

n×2	162484018
n×3	243726027
n×4	324968036
n×5	406210045

Division

n÷y

n÷2	40621004.5
n÷3	27080669.666667
n÷3	20310502.25
n÷5	16248401.8

Exponentiation

n^y

n²	6600264026356081
n³	5.362187094316E+23
n⁴	4.356348521761E+31
n⁵	3.5391850581205E+39

Nth Root

^y√n

²√n	9013.4349168339
³√n	433.1053529912
⁴√n	94.939111628632
⁵√n	38.190569167997

Divisors of 81242009

1, 81242009

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81242010	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40621005	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9013.4349723066	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999753822	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81242009 can be divided by 2 positive divisors. The sum of these divisors (counting 81242009) is 81242010, the average is 40621005.

Base conversion 81242009

Base	System	Value
2	Binary	100110101111010011110011001
3	Ternary	12122212112002022
4	Quaternary	10311322132121
5	Quinary	131244221014
6	Senary	12021144225
8	Octal	465723631
10	Decimal	81242009
12	Duodecimal	2325b075
16	Hexadecimal	4d7a799
20	Vigesimal	157f509
36	Base36	1cdaqh

Cryptographic Hash Functions

md5	9f1382d0cd624f38cd7204158a2625b9
sha1	fe9dd4fe15fe5df629794721f2245d57723136aa
sha256	db26775d564f0c79fd873c76b638a41f4800c8bcdf03916450775a00213fc8b6
sha512	ae960da80ef7503bb0a8d1dcc780fbf08d242dfc01ec2594a2da5a6e5537ee4bcb4b6ab0480605991d56ef01995491299d45ae5d39361912052fc322ce1e956c
ripemd-160	b8a4cb3b8c47c99272d9ecd5cfafe736cc1853cc

81242009 as geometric shapes

Circle

Radius = n

Diameter	162484018
Circumference	510458597.27455
Area	2.0735340976953E+16

Sphere

Radius = n

Volume	2.2461076776903E+24
Surface area	8.2941363907813E+16
Circumference	510458597.27455

Square

Length = n

Perimeter	324968036
Area	6600264026356081
Diagonal	114893550.96224

Cube

Length = n

Surface area	39601584158136486
Volume	5.362187094316E+23
Space diagonal	140715287.29697

Equilateral Triangle

Length = n

Perimeter	243726027
Area	2.8579981592545E+15
Altitude	70357643.648484

Triangular Pyramid

Length = n

Surface area	2.8579981592545E+15
Volume	6.3193980939697E+22
Height	38297850.320746