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

81649085 (number)

81649085 is an odd 8-digits composite number following 81649084 and preceding 81649086. In scientific notation, it is written as 8.1649085 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 55987920 positive integers (up to 81649085) that are relatively prime to 81649085.

Interesting facts

81649085 has 8 divisors, whose sum is 111975936
The reverse of 81649085 is 58094618
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	eighty-one million six hundred forty-nine thousand eighty-five

Notation

Scientific notation	8.1649085 × 10^7
Engineering notation	8.1649085 × 10^6

Prime Factorization of 81649085

Prime Factorization 7 × 5 × 2332831

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81649085	Product of the distinct prime numbers

The prime factorization of 81649085 is 7 × 5 × 2332831. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 1, 41, 86, 282, 924, 3470, 3378, 89125, 70364, 626316, 450809, 2337425, 7797783, 21935935, 40795455, 727574361, 724354763, 1361453635, 9491396809

Basic calculations (n = 81649085)

Multiplication

n×y

n×2	163298170
n×3	244947255
n×4	326596340
n×5	408245425

Division

n÷y

n÷2	40824542.5
n÷3	27216361.666667
n÷3	20412271.25
n÷5	16329817

Exponentiation

n^y

n²	6666573081337225
n³	5.4431959217682E+23
n⁴	4.444319664881E+31
n⁵	3.6287463408504E+39

Nth Root

^y√n

²√n	9035.9883244723
³√n	433.82752920996
⁴√n	95.057815693778
⁵√n	38.228764674148

Divisors of 81649085

1, 5, 7, 35, 2332831, 11664155, 16329817, 81649085

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	-81649084	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 81649085 can be divided by 8 positive divisors. The sum of these divisors (counting 81649085) is 1, the average is 0.125.

Base conversion 81649085

Base	System	Value
2	Binary	100110111011101110110111101
3	Ternary	12200122012111012
4	Quaternary	10313131312331
5	Quinary	131400232320
6	Senary	12034005005
8	Octal	467356675
10	Decimal	81649085
12	Duodecimal	23416765
16	Hexadecimal	4ddddbd
20	Vigesimal	15a62e5
36	Base36	1cm0u5

Cryptographic Hash Functions

md5	2d12cc028d2377d21c16ffc89c43a323
sha1	11987752f6ecec71108de08c60fc249a94588644
sha256	c32e713fe36789799a5c0b0a658063b221d3e0493009a97abde4e1d399b09df5
sha512	7293f7ffc0c58e781146d233774099cd77c862199f717f7f1f6eb917f1c2e291c2f72c4895f675948e001e16fb906619b8d4835476e4fe7af4742193b3242b7d
ripemd-160	e7f3ed690429cbb3701009cc32fd2a89a1f1216d

81649085 as geometric shapes

Circle

Radius = n

Diameter	163298170
Circumference	513016331.21666
Area	2.0943657016948E+16

Sphere

Radius = n

Volume	2.2800405759836E+24
Surface area	8.3774628067794E+16
Circumference	513016331.21666

Square

Length = n

Perimeter	326596340
Area	6666573081337225
Diagonal	115469243.36235

Cube

Length = n

Surface area	39999438488023350
Volume	5.4431959217682E+23
Space diagonal	141420363.61151

Equilateral Triangle

Length = n

Perimeter	244947255
Area	2.8867108223118E+15
Altitude	70710181.805755

Triangular Pyramid

Length = n

Surface area	2.8867108223118E+15
Volume	6.414867912682E+22
Height	38489747.787451