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

81128071 (number)

81128071 is an odd 8-digits composite number following 81128070 and preceding 81128072. In scientific notation, it is written as 8.1128071 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 80791200 positive integers (up to 81128071) that are relatively prime to 81128071.

Interesting facts

81128071 has 4 divisors, whose sum is 81464944
The reverse of 81128071 is 17082118
Previous prime number is 241

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	eighty-one million one hundred twenty-eight thousand seventy-one

Notation

Scientific notation	8.1128071 × 10^7
Engineering notation	8.1128071 × 10^6

Prime Factorization of 81128071

Prime Factorization 241 × 336631

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81128071	Product of the distinct prime numbers

The prime factorization of 81128071 is 241 × 336631. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 3, 27, 34, 655, 564, 6129, 839, 72581, 27337, 949723, 747987, 1456096, 8482121, 30502655, 40153900, 949351128, 450991690, 8137526279, 7275434318

Basic calculations (n = 81128071)

Multiplication

n×y

n×2	162256142
n×3	243384213
n×4	324512284
n×5	405640355

Division

n÷y

n÷2	40564035.5
n÷3	27042690.333333
n÷3	20282017.75
n÷5	16225614.2

Exponentiation

n^y

n²	6581763904181041
n³	5.3396580932364E+23
n⁴	4.331961609038E+31
n⁵	3.5144368898731E+39

Nth Root

^y√n

²√n	9007.1122453315
³√n	432.90278847517
⁴√n	94.905807226594
⁵√n	38.179851067333

Divisors of 81128071

1, 241, 336631, 81128071

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	-81128070	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 81128071 can be divided by 4 positive divisors. The sum of these divisors (counting 81128071) is 1, the average is 0.25.

Base conversion 81128071

Base	System	Value
2	Binary	100110101011110101010000111
3	Ternary	12122122201210101
4	Quaternary	10311132222013
5	Quinary	131232044241
6	Senary	12014504531
8	Octal	465365207
10	Decimal	81128071
12	Duodecimal	23205147
16	Hexadecimal	4d5ea87
20	Vigesimal	157103b
36	Base36	1cautj

Cryptographic Hash Functions

md5	099e35716b753ad48f55cd7081a80b10
sha1	10d3972a7f1e4a5828bb939c129b0c3b68d1dce4
sha256	60fcd979ddf239ca613c3360e178bd73e123b37e77fbaebcb32ab6532c7bc81d
sha512	8cf3901c8ae5b2d49f19959f59358d5eda1b10d743fee48e1e64c540b5a8b1f020711879279994d917f5b326dd90a187492d6a85dc23482892d1c419bed3d7ae
ripemd-160	dbd6dcf0b1bbccf9d98574d59a8777e3beb40b82

81128071 as geometric shapes

Circle

Radius = n

Diameter	162256142
Circumference	509742703.70702
Area	2.0677221129038E+16

Sphere

Radius = n

Volume	2.2366707517857E+24
Surface area	8.2708884516151E+16
Circumference	509742703.70702

Square

Length = n

Perimeter	324512284
Area	6581763904181041
Diagonal	114732418.29737

Cube

Length = n

Surface area	39490583425086246
Volume	5.3396580932364E+23
Space diagonal	140517940.89206

Equilateral Triangle

Length = n

Perimeter	243384213
Area	2.8499873713661E+15
Altitude	70258970.446028

Triangular Pyramid

Length = n

Surface area	2.8499873713661E+15
Volume	6.2928474115751E+22
Height	38244139.432456