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

81444291 (number)

81444291 is an odd 8-digits composite number following 81444290 and preceding 81444292. In scientific notation, it is written as 8.1444291 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 54296192 positive integers (up to 81444291) that are relatively prime to 81444291.

Interesting facts

81444291 has 4 divisors, whose sum is 108592392
The reverse of 81444291 is 19244418
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million four hundred forty-four thousand two hundred ninety-one

Notation

Scientific notation	8.1444291 × 10^7
Engineering notation	8.1444291 × 10^6

Prime Factorization of 81444291

Prime Factorization 3 × 27148097

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81444291	Product of the distinct prime numbers

The prime factorization of 81444291 is 3 × 27148097. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 75, 2, 14, 516, 262, 9073, 61816, 53751, 513370, 799593, 4036672, 9810791, 84288632, 57842027, 265301856, 378311153, 3070842407, 1775682236

Basic calculations (n = 81444291)

Multiplication

n×y

n×2	162888582
n×3	244332873
n×4	325777164
n×5	407221455

Division

n÷y

n÷2	40722145.5
n÷3	27148097
n÷3	20361072.75
n÷5	16288858.2

Exponentiation

n^y

n²	6633172536492681
n³	5.4023403431532E+23
n⁴	4.3998977898881E+31
n⁵	3.583465559699E+39

Nth Root

^y√n

²√n	9024.6490790501
³√n	433.46451367051
⁴√n	94.998153029678
⁵√n	38.209568162043

Divisors of 81444291

1, 3, 27148097, 81444291

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	-81444290	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 81444291 can be divided by 4 positive divisors. The sum of these divisors (counting 81444291) is 1, the average is 0.25.

Base conversion 81444291

Base	System	Value
2	Binary	100110110101011110111000011
3	Ternary	12200020210120020
4	Quaternary	10312223313003
5	Quinary	131322204131
6	Senary	12025344523
8	Octal	466536703
10	Decimal	81444291
12	Duodecimal	23338143
16	Hexadecimal	4dabdc3
20	Vigesimal	1590aeb
36	Base36	1chmtf

Cryptographic Hash Functions

md5	ef0dd492e650763bd09ce8b34f735daa
sha1	15a974053d40974ae74ab898d486ae4e99ea3de7
sha256	40e804b4ace054259828d4fb22f0a7494d268b9d0be19931f6d2bd05d63ad82b
sha512	48aeee905ca77148ca8d4002ce53a77f0c115df4e27b8a55fe1976c2db04a1d9948fa0d6d57ec7208f0e3f08f17631d3fabfaca46c841569b165cf3fcf224023
ripemd-160	b9b4325d660d72ad4d946c3a903a7aaccbca7bd0

81444291 as geometric shapes

Circle

Radius = n

Diameter	162888582
Circumference	511729572.56486
Area	2.0838726110639E+16

Sphere

Radius = n

Volume	2.2629270312322E+24
Surface area	8.3354904442556E+16
Circumference	511729572.56486

Square

Length = n

Perimeter	325777164
Area	6633172536492681
Diagonal	115179620.91006

Cube

Length = n

Surface area	39799035218956086
Volume	5.4023403431532E+23
Space diagonal	141065649.99842

Equilateral Triangle

Length = n

Perimeter	244332873
Area	2.872247962144E+15
Altitude	70532824.999212

Triangular Pyramid

Length = n

Surface area	2.872247962144E+15
Volume	6.3667191515355E+22
Height	38393206.97002