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

81542009 (number)

81542009 is an odd 8-digits composite number following 81542008 and preceding 81542010. In scientific notation, it is written as 8.1542009 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 80172400 positive integers (up to 81542009) that are relatively prime to 81542009.

Interesting facts

81542009 has 8 divisors, whose sum is 82918080
The reverse of 81542009 is 90024518
Previous prime number is 419

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	8.1542009 × 10^7
Engineering notation	8.1542009 × 10^6

Prime Factorization of 81542009

Prime Factorization 71 × 419 × 2741

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81542009	Product of the distinct prime numbers

The prime factorization of 81542009 is 71 × 419 × 2741. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 3, 81, 47, 812, 908, 3613, 8859, 77952, 45333, 406602, 201523, 5744250, 7194053, 75939275, 8058435, 808337422, 833451299, 8474638365, 1620905108

Basic calculations (n = 81542009)

Multiplication

n×y

n×2	163084018
n×3	244626027
n×4	326168036
n×5	407710045

Division

n÷y

n÷2	40771004.5
n÷3	27180669.666667
n÷3	20385502.25
n÷5	16308401.8

Exponentiation

n^y

n²	6649099231756081
n³	5.4218090939775E+23
n⁴	4.4210520593739E+31
n⁵	3.6050146681494E+39

Nth Root

^y√n

²√n	9030.0614062142
³√n	433.63780331353
⁴√n	95.0266352462
⁵√n	38.218732639741

Divisors of 81542009

1, 71, 419, 2741, 29749, 194611, 1148479, 81542009

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	-81542008	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 81542009 can be divided by 8 positive divisors. The sum of these divisors (counting 81542009) is 1, the average is 0.125.

Base conversion 81542009

Base	System	Value
2	Binary	100110111000011101101111001
3	Ternary	12200102202121102
4	Quaternary	10313003231321
5	Quinary	131333321014
6	Senary	12031421145
8	Octal	467035571
10	Decimal	81542009
12	Duodecimal	233847b5
16	Hexadecimal	4dc3b79
20	Vigesimal	159cf09
36	Base36	1cjq7t

Cryptographic Hash Functions

md5	6b70937f57f68e63f7299b3634166a58
sha1	912104b48b155563fdf2b7fc67e9f8ebadfc8122
sha256	f07129278e27e10f345a234a5701dad8db7a00076700e1c7a2d88e831785db59
sha512	b219159c2fedb2d31c53eb65d3657b4a9c09dc1ecb03fdeb79381b732c76403d9b57108e267309bccaec7e13f06ca155cccaf6ca754f24ca2e934d6f0a773201
ripemd-160	b5c139e351778d66ff828af545db97faf99e4072

81542009 as geometric shapes

Circle

Radius = n

Diameter	163084018
Circumference	512343552.86671
Area	2.0888761299474E+16

Sphere

Radius = n

Volume	2.2710820825075E+24
Surface area	8.3555045197898E+16
Circumference	512343552.86671

Square

Length = n

Perimeter	326168036
Area	6649099231756081
Diagonal	115317815.03095

Cube

Length = n

Surface area	39894595390536486
Volume	5.4218090939775E+23
Space diagonal	141234902.53924

Equilateral Triangle

Length = n

Perimeter	244626027
Area	2.8791444234922E+15
Altitude	70617451.269619

Triangular Pyramid

Length = n

Surface area	2.8791444234922E+15
Volume	6.3896632944173E+22
Height	38439271.676983