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

81330649 (number)

81330649 is an odd 8-digits composite number following 81330648 and preceding 81330650. In scientific notation, it is written as 8.1330649 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 81307600 positive integers (up to 81330649) that are relatively prime to 81330649.

Interesting facts

81330649 has 4 divisors, whose sum is 81353700
The reverse of 81330649 is 94603318
Previous prime number is 4349

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	eighty-one million three hundred thirty thousand six hundred forty-nine

Notation

Scientific notation	8.1330649 × 10^7
Engineering notation	8.1330649 × 10^6

Prime Factorization of 81330649

Prime Factorization 4349 × 18701

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81330649	Product of the distinct prime numbers

The prime factorization of 81330649 is 4349 × 18701. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 10, 19, 10, 810, 646, 1398, 1813, 37211, 83699, 722164, 239144, 3203029, 8849282, 45473194, 33862376, 524424633, 709911371, 2623824729, 5070525290

Basic calculations (n = 81330649)

Multiplication

n×y

n×2	162661298
n×3	243991947
n×4	325322596
n×5	406653245

Division

n÷y

n÷2	40665324.5
n÷3	27110216.333333
n÷3	20332662.25
n÷5	16266129.8

Exponentiation

n^y

n²	6614674466761201
n³	5.3797576730542E+23
n⁴	4.3753918301223E+31
n⁵	3.5585345717314E+39

Nth Root

^y√n

²√n	9018.3506806954
³√n	433.26281054838
⁴√n	94.964997134183
⁵√n	38.198899182653

Divisors of 81330649

1, 4349, 18701, 81330649

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81330648	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81330649 can be divided by 4 positive divisors. The sum of these divisors (counting 81330649) is 1, the average is 0.25.

Base conversion 81330649

Base	System	Value
2	Binary	100110110010000000111011001
3	Ternary	12200001000200021
4	Quaternary	10312100013121
5	Quinary	131310040044
6	Senary	12023110441
8	Octal	466200731
10	Decimal	81330649
12	Duodecimal	232a2421
16	Hexadecimal	4d901d9
20	Vigesimal	15866c9
36	Base36	1cf74p

Cryptographic Hash Functions

md5	cd302e965e2e486802f58529f5e8586a
sha1	7e61ccdd75899f35499f9991bf4abe759c75313e
sha256	ca3786b2d2e47b4ece44c32303a0d209ab7358d7d1b920822553bf11fb2fdc73
sha512	111b7eb9bb32f7e97ca166a6c2a773eedd68b4ed8a54b98d2fef59b1e3146a327d82edd8846df515bbd48150eabc91f10a6ee419d20723737956e947719ba2df
ripemd-160	40a5e171f1aef689b83233dd12af1d20eaf56169

81330649 as geometric shapes

Circle

Radius = n

Diameter	162661298
Circumference	511015538.82018
Area	2.0780612710665E+16

Sphere

Radius = n

Volume	2.2534676245014E+24
Surface area	8.312245084266E+16
Circumference	511015538.82018

Square

Length = n

Perimeter	325322596
Area	6614674466761201
Diagonal	115018906.85241

Cube

Length = n

Surface area	39688046800567206
Volume	5.3797576730542E+23
Space diagonal	140868816.28055

Equilateral Triangle

Length = n

Perimeter	243991947
Area	2.8642380629897E+15
Altitude	70434408.140275

Triangular Pyramid

Length = n

Surface area	2.8642380629897E+15
Volume	6.3401052195949E+22
Height	38339635.617469