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

81489741 (number)

81489741 is an odd 8-digits composite number following 81489740 and preceding 81489742. In scientific notation, it is written as 8.1489741 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 54287520 positive integers (up to 81489741) that are relatively prime to 81489741.

Interesting facts

81489741 has 8 divisors, whose sum is 108730944
The reverse of 81489741 is 14798418
Previous prime number is 1511

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 eighty-nine thousand seven hundred forty-one

Notation

Scientific notation	8.1489741 × 10^7
Engineering notation	8.1489741 × 10^6

Prime Factorization of 81489741

Prime Factorization 3 × 1511 × 17977

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489741	Product of the distinct prime numbers

The prime factorization of 81489741 is 3 × 1511 × 17977. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 3, 67, 32, 344, 389, 5569, 7631, 56248, 48306, 159524, 915269, 68637, 69771, 30223270, 28096558, 962853102, 733442112, 3178177481, 2217518065

Basic calculations (n = 81489741)

Multiplication

n×y

n×2	162979482
n×3	244469223
n×4	325958964
n×5	407448705

Division

n÷y

n÷2	40744870.5
n÷3	27163247
n÷3	20372435.25
n÷5	16297948.2

Exponentiation

n^y

n²	6640577888247081
n³	5.4113897220358E+23
n⁴	4.4097274689876E+31
n⁵	3.5934754932839E+39

Nth Root

^y√n

²√n	9027.1668312932
³√n	433.54513032406
⁴√n	95.011403690784
⁵√n	38.213831781584

Divisors of 81489741

1, 3, 1511, 4533, 17977, 53931, 27163247, 81489741

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	-81489740	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 81489741 can be divided by 8 positive divisors. The sum of these divisors (counting 81489741) is 1, the average is 0.125.

Base conversion 81489741

Base	System	Value
2	Binary	100110110110110111101001101
3	Ternary	12200100002220120
4	Quaternary	10312312331031
5	Quinary	131330132431
6	Senary	12030335153
8	Octal	466667515
10	Decimal	81489741
12	Duodecimal	2335a4b9
16	Hexadecimal	4db6f4d
20	Vigesimal	1596471
36	Base36	1cilvx

Cryptographic Hash Functions

md5	e34b1eec8ff1d892296a561aa0309b64
sha1	b55a0bfdf7fb8012d99a9b593bcc2cfefe7350f8
sha256	b8526a677d2dcadf6de15eedf4980fc4804c80d9bf8a380c3edbeb30fe970306
sha512	46047d51bba15bbc7e73f4404306e8e09eafe9a704d229861ea8b363513d1d321ea64849311cbce805e3a9361dba56a0009c3eebbe59b0e2b33071dcc744e878
ripemd-160	652cec66fb40424a79482514c8a8e2935330d232

81489741 as geometric shapes

Circle

Radius = n

Diameter	162979482
Circumference	512015143.33707
Area	2.0861990709308E+16

Sphere

Radius = n

Volume	2.2667176261945E+24
Surface area	8.3447962837231E+16
Circumference	512015143.33707

Square

Length = n

Perimeter	325958964
Area	6640577888247081
Diagonal	115243896.91647

Cube

Length = n

Surface area	39843467329482486
Volume	5.4113897220358E+23
Space diagonal	141144371.70763

Equilateral Triangle

Length = n

Perimeter	244469223
Area	2.8754545735156E+15
Altitude	70572185.853814

Triangular Pyramid

Length = n

Surface area	2.8754545735156E+15
Volume	6.3773839468245E+22
Height	38414632.30549