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

81330791 (number)

81330791 is an odd 8-digits prime number following 81330790 and preceding 81330792. In scientific notation, it is written as 8.1330791 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 81330790 positive integers (up to 81330791) that are relatively prime to 81330791.

Interesting facts

81330791 has 2 divisors, whose sum is 81330792
The reverse of 81330791 is 19703318
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	8.1330791 × 10^7
Engineering notation	8.1330791 × 10^6

Prime Factorization of 81330791

Prime Factorization 81330791

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81330791	Product of the distinct prime numbers

The prime factorization of 81330791 is 81330791. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 10, 80, 74, 737, 272, 5717, 567, 23111, 27835, 583032, 398351, 3717836, 9583965, 49143352, 48761827, 357569165, 252336760, 1281378867, 720744592

Basic calculations (n = 81330791)

Multiplication

n×y

n×2	162661582
n×3	243992373
n×4	325323164
n×5	406653955

Division

n÷y

n÷2	40665395.5
n÷3	27110263.666667
n÷3	20332697.75
n÷5	16266158.2

Exponentiation

n^y

n²	6614697564685681
n³	5.3797858516166E+23
n⁴	4.3754223872259E+31
n⁵	3.5585656371219E+39

Nth Root

^y√n

²√n	9018.3585535285
³√n	433.26306270131
⁴√n	94.96503858541
⁵√n	38.198912521388

Divisors of 81330791

1, 81330791

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81330792	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40665396	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9018.3586089709	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999754091	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81330791 can be divided by 2 positive divisors. The sum of these divisors (counting 81330791) is 81330792, the average is 40665396.

Base conversion 81330791

Base	System	Value
2	Binary	100110110010000001001100111
3	Ternary	12200001000212112
4	Quaternary	10312100021213
5	Quinary	131310041131
6	Senary	12023111235
8	Octal	466201147
10	Decimal	81330791
12	Duodecimal	232a251b
16	Hexadecimal	4d90267
20	Vigesimal	15866jb
36	Base36	1cf78n

Cryptographic Hash Functions

md5	d67b5bf47309edfb39fee564a3027a50
sha1	cc65bceedbfec2693ecb0121cc38cb9878980eb4
sha256	3a00cabd8abad733cf771f67e2d72772b7fe40b15dfb6a13e1c185d32632255f
sha512	58c8d246671f44a86e37c8de0d9e008f249dfc24e69ff3856618b613e1a513976554ff70c37425b2634ea1eeb33ec74d01466c2d75e144f81f4b95be70d3b059
ripemd-160	749b26f08d2e738b664624f71069849d42427321

81330791 as geometric shapes

Circle

Radius = n

Diameter	162661582
Circumference	511016431.03249
Area	2.0780685274935E+16

Sphere

Radius = n

Volume	2.25347942791E+24
Surface area	8.3122741099739E+16
Circumference	511016431.03249

Square

Length = n

Perimeter	325323164
Area	6614697564685681
Diagonal	115019107.67073

Cube

Length = n

Surface area	39688185388114086
Volume	5.3797858516166E+23
Space diagonal	140869062.23177

Equilateral Triangle

Length = n

Perimeter	243992373
Area	2.8642480646844E+15
Altitude	70434531.115883

Triangular Pyramid

Length = n

Surface area	2.8642480646844E+15
Volume	6.3401384283492E+22
Height	38339702.556911