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

81330291 (number)

81330291 is an odd 8-digits composite number following 81330290 and preceding 81330292. In scientific notation, it is written as 8.1330291 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 46474344 positive integers (up to 81330291) that are relatively prime to 81330291.

Interesting facts

81330291 has 8 divisors, whose sum is 110161920
The reverse of 81330291 is 19203318
Previous prime number is 63

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one million three hundred thirty thousand two hundred ninety-one

Notation

Scientific notation	8.1330291 × 10^7
Engineering notation	8.1330291 × 10^6

Prime Factorization of 81330291

Prime Factorization 3 × 63 × 430319

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81330291	Product of the distinct prime numbers

The prime factorization of 81330291 is 3 × 63 × 430319. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 6, 55, 89, 319, 432, 5641, 9031, 47629, 36231, 743936, 180847, 1044628, 4343995, 80541796, 42031028, 25472807, 264242503, 6664441630, 5508312020

Basic calculations (n = 81330291)

Multiplication

n×y

n×2	162660582
n×3	243990873
n×4	325321164
n×5	406651455

Division

n÷y

n÷2	40665145.5
n÷3	27110097
n÷3	20332572.75
n÷5	16266058.2

Exponentiation

n^y

n²	6614616234144681
n³	5.3796866317631E+23
n⁴	4.375314792501E+31
n⁵	3.5584562529071E+39

Nth Root

^y√n

²√n	9018.3308322549
³√n	433.26217483759
⁴√n	94.964892630145
⁵√n	38.198865553928

Divisors of 81330291

1, 3, 63, 189, 430319, 1290957, 27110097, 81330291

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81330290	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81330291 can be divided by 8 positive divisors. The sum of these divisors (counting 81330291) is 1, the average is 0.125.

Base conversion 81330291

Base	System	Value
2	Binary	100110110010000000001110011
3	Ternary	12200001000012000
4	Quaternary	10312100001303
5	Quinary	131310032131
6	Senary	12023105043
8	Octal	466200163
10	Decimal	81330291
12	Duodecimal	232a2183
16	Hexadecimal	4d90073
20	Vigesimal	15865eb
36	Base36	1cf6ur

Cryptographic Hash Functions

md5	eeb43b14742f2ff8029df1c732cc1ab1
sha1	e9d45cce17ab91de1d6b7ebeb942b87650cb5b59
sha256	498837b752fd00c081abcb1b69e5dce8f602592aeabf4499e98f6f4cd8deba5c
sha512	916a4a9145bb6a19d7e607bd859feb7594eb9d500599c1b1e7fb2444663ebc49734dd1240595ab8453422926929d13145fb2fe517c04945d74ce1eb8456cc897
ripemd-160	96c14d95681d73391e81642ccf08a36a56fead75

81330291 as geometric shapes

Circle

Radius = n

Diameter	162660582
Circumference	511013289.43984
Area	2.0780429767505E+16

Sphere

Radius = n

Volume	2.253437866795E+24
Surface area	8.3121719070019E+16
Circumference	511013289.43984

Square

Length = n

Perimeter	325321164
Area	6614616234144681
Diagonal	115018400.56395

Cube

Length = n

Surface area	39687697404868086
Volume	5.3796866317631E+23
Space diagonal	140868196.20636

Equilateral Triangle

Length = n

Perimeter	243990873
Area	2.8642128475271E+15
Altitude	70434098.103181

Triangular Pyramid

Length = n

Surface area	2.8642128475271E+15
Volume	6.3400214966305E+22
Height	38339466.85465