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

81489085 (number)

81489085 is an odd 8-digits composite number following 81489084 and preceding 81489086. In scientific notation, it is written as 8.1489085 × 10^7. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 62713728 positive integers (up to 81489085) that are relatively prime to 81489085.

Interesting facts

81489085 has 8 divisors, whose sum is 97838136
The reverse of 81489085 is 58098418
Previous prime number is 2881

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	eighty-one million four hundred eighty-nine thousand eighty-five

Notation

Scientific notation	8.1489085 × 10^7
Engineering notation	8.1489085 × 10^6

Prime Factorization of 81489085

Prime Factorization 5 × 2881 × 5657

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81489085	Product of the distinct prime numbers

The prime factorization of 81489085 is 5 × 2881 × 5657. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 3, 27, 46, 82, 715, 9660, 4783, 95184, 8788, 414066, 448354, 5665709, 4693381, 29393173, 60223731, 977618370, 220685190, 7044859097, 4432358783

Basic calculations (n = 81489085)

Multiplication

n×y

n×2	162978170
n×3	244467255
n×4	325956340
n×5	407445425

Division

n÷y

n÷2	40744542.5
n÷3	27163028.333333
n÷3	20372271.25
n÷5	16297817

Exponentiation

n^y

n²	6640470974137225
n³	5.411259036515E+23
n⁴	4.4095854758359E+31
n⁵	3.5933308565516E+39

Nth Root

^y√n

²√n	9027.1304964535
³√n	433.54396696138
⁴√n	95.011212477546
⁵√n	38.213770256406

Divisors of 81489085

1, 5, 2881, 5657, 14405, 28285, 16297817, 81489085

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	-81489084	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 81489085 can be divided by 8 positive divisors. The sum of these divisors (counting 81489085) is 1, the average is 0.125.

Base conversion 81489085

Base	System	Value
2	Binary	100110110110110110010111101
3	Ternary	12200100002000021
4	Quaternary	10312312302331
5	Quinary	131330122320
6	Senary	12030332141
8	Octal	466666275
10	Decimal	81489085
12	Duodecimal	2335a051
16	Hexadecimal	4db6cbd
20	Vigesimal	15962e5
36	Base36	1cildp

Cryptographic Hash Functions

md5	40a43cdcd2fcbde7bdf7724fe47ef55a
sha1	6560847e37c913f54f2480e135dd34c84c841d1a
sha256	f311eb817354704024dc66dac07ed11f755270357abe43acb6ba82ca99737b80
sha512	f134e7a74a989102f59dbdba19374119faa4621196fa0305b0ca316a8aef0c9ed1e7549d1ba5a7b9e464580cb3bb16535e971e540b38fd48cc76697d65488bff
ripemd-160	77ea0170e663c5a8733a4d802c229c8b932572d3

81489085 as geometric shapes

Circle

Radius = n

Diameter	162978170
Circumference	512011021.56751
Area	2.0861654828726E+16

Sphere

Radius = n

Volume	2.2666628847716E+24
Surface area	8.3446619314903E+16
Circumference	512011021.56751

Square

Length = n

Perimeter	325956340
Area	6640470974137225
Diagonal	115242969.19237

Cube

Length = n

Surface area	39842825844823350
Volume	5.411259036515E+23
Space diagonal	141143235.4823

Equilateral Triangle

Length = n

Perimeter	244467255
Area	2.875408278348E+15
Altitude	70571617.741149

Triangular Pyramid

Length = n

Surface area	2.875408278348E+15
Volume	6.3772299324612E+22
Height	38414323.064125