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

81497139 (number)

81497139 is an odd 8-digits composite number following 81497138 and preceding 81497140. In scientific notation, it is written as 8.1497139 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 54255840 positive integers (up to 81497139) that are relatively prime to 81497139.

Interesting facts

81497139 has 8 divisors, whose sum is 108814032
The reverse of 81497139 is 93179418
Previous prime number is 733

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	eighty-one million four hundred ninety-seven thousand one hundred thirty-nine

Notation

Scientific notation	8.1497139 × 10^7
Engineering notation	8.1497139 × 10^6

Prime Factorization of 81497139

Prime Factorization 3 × 733 × 37061

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81497139	Product of the distinct prime numbers

The prime factorization of 81497139 is 3 × 733 × 37061. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 9, 66, 81, 27, 239, 7344, 4985, 798, 19597, 62831, 214239, 6043917, 9021248, 31665961, 55997800, 910420750, 158883825, 1931983972, 4733326810

Basic calculations (n = 81497139)

Multiplication

n×y

n×2	162994278
n×3	244491417
n×4	325988556
n×5	407485695

Division

n÷y

n÷2	40748569.5
n÷3	27165713
n÷3	20374284.75
n÷5	16299427.8

Exponentiation

n^y

n²	6641783665185321
n³	5.4128636656954E+23
n⁴	4.4113290255123E+31
n⁵	3.5951069476691E+39

Nth Root

^y√n

²√n	9027.5765851085
³√n	433.55824964345
⁴√n	95.013560006499
⁵√n	38.214525600606

Divisors of 81497139

1, 3, 733, 2199, 37061, 111183, 27165713, 81497139

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	-81497138	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 81497139 can be divided by 8 positive divisors. The sum of these divisors (counting 81497139) is 1, the average is 0.125.

Base conversion 81497139

Base	System	Value
2	Binary	100110110111000110000110011
3	Ternary	12200100111001120
4	Quaternary	10312320300303
5	Quinary	131330402024
6	Senary	12030433323
8	Octal	466706063
10	Decimal	81497139
12	Duodecimal	23362843
16	Hexadecimal	4db8c33
20	Vigesimal	15972gj
36	Base36	1cirlf

Cryptographic Hash Functions

md5	5deb403907005665ca6b53c555d5193d
sha1	ca1dc34fe58b13e879652b5fc9a8dc8816413048
sha256	5793b323fee1fbc2ba166c6e9e3be8c6f85ad5c0ab1a6a7ab423d88a976ae145
sha512	c0b425dd370fffc0cfbeaac938054937e88aaa6e56a947c50a3caeeff721357ee7671c9dbbf7194c9f358b37560068e9e32661454c33da144ca88eeeeb68a177
ripemd-160	ff317379f10803e3bb5a0c3ef2849e1db095838e

81497139 as geometric shapes

Circle

Radius = n

Diameter	162994278
Circumference	512061626.34197
Area	2.0865778769279E+16

Sphere

Radius = n

Volume	2.2673350302709E+24
Surface area	8.3463115077116E+16
Circumference	512061626.34197

Square

Length = n

Perimeter	325988556
Area	6641783665185321
Diagonal	115254359.26841

Cube

Length = n

Surface area	39850701991111926
Volume	5.4128636656954E+23
Space diagonal	141157185.4195

Equilateral Triangle

Length = n

Perimeter	244491417
Area	2.8759766902455E+15
Altitude	70578592.709752

Triangular Pyramid

Length = n

Surface area	2.8759766902455E+15
Volume	6.3791210060858E+22
Height	38418119.756135