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

81368081 (number)

81368081 is an odd 8-digits composite number following 81368080 and preceding 81368082. In scientific notation, it is written as 8.1368081 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 81238500 positive integers (up to 81368081) that are relatively prime to 81368081.

Interesting facts

81368081 has 4 divisors, whose sum is 81497664
The reverse of 81368081 is 18086318
Previous prime number is 631

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	eighty-one million three hundred sixty-eight thousand eighty-one

Notation

Scientific notation	8.1368081 × 10^7
Engineering notation	8.1368081 × 10^6

Prime Factorization of 81368081

Prime Factorization 631 × 128951

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81368081	Product of the distinct prime numbers

The prime factorization of 81368081 is 631 × 128951. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 1, 98, 41, 1, 335, 9955, 5595, 57424, 3001, 111393, 876447, 2198903, 9885031, 64366633, 46409254, 322316511, 301850248, 6129129751, 3330014902

Basic calculations (n = 81368081)

Multiplication

n×y

n×2	162736162
n×3	244104243
n×4	325472324
n×5	406840405

Division

n÷y

n÷2	40684040.5
n÷3	27122693.666667
n÷3	20342020.25
n÷5	16273616.2

Exponentiation

n^y

n²	6620764605622561
n³	5.3871891071223E+23
n⁴	4.3834523963064E+31
n⁵	3.5667310964231E+39

Nth Root

^y√n

²√n	9020.4257660046
³√n	433.32926932415
⁴√n	94.975922032927
⁵√n	38.202414703678

Divisors of 81368081

1, 631, 128951, 81368081

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	-81368080	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 81368081 can be divided by 4 positive divisors. The sum of these divisors (counting 81368081) is 1, the average is 0.25.

Base conversion 81368081

Base	System	Value
2	Binary	100110110011001010000010001
3	Ternary	12200002221000122
4	Quaternary	10312121100101
5	Quinary	131312234311
6	Senary	12024000025
8	Octal	466312021
10	Decimal	81368081
12	Duodecimal	23300015
16	Hexadecimal	4d99411
20	Vigesimal	158b041
36	Base36	1cg00h

Cryptographic Hash Functions

md5	23726435ea9d46aaf928c1b28a3b889f
sha1	5da87336102b74c6f30471544eb944ed45885db3
sha256	c17da08bbcdcc86c7f5123e9699bee261f95f2900a75f97e8db52a2f7fd58fd5
sha512	b945cd03c8b7ec801d157005449725307117b5fbd26c8b21ee7056fbdc9813f7b028bb9fa882767265fc657cf007d65c68fafcee5e9e9055acca0524f77a5a99
ripemd-160	4a18841abbe179da6e6e4dc946167d9e05793241

81368081 as geometric shapes

Circle

Radius = n

Diameter	162736162
Circumference	511250731.0126
Area	2.0799745446171E+16

Sphere

Radius = n

Volume	2.2565804963246E+24
Surface area	8.3198981784685E+16
Circumference	511250731.0126

Square

Length = n

Perimeter	325472324
Area	6620764605622561
Diagonal	115071843.69447

Cube

Length = n

Surface area	39724587633735366
Volume	5.3871891071223E+23
Space diagonal	140933650.40638

Equilateral Triangle

Length = n

Perimeter	244104243
Area	2.866875170473E+15
Altitude	70466825.20319

Triangular Pyramid

Length = n

Surface area	2.866875170473E+15
Volume	6.3488632486341E+22
Height	38357281.231491