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

820145 (number)

820145 is an odd 6-digits composite number following 820144 and preceding 820146. In scientific notation, it is written as 8.20145 × 10^5. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 645120 positive integers (up to 820145) that are relatively prime to 820145.

Interesting facts

820145 has 8 divisors, whose sum is 1000680
The reverse of 820145 is 541028
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2

Name

Name	eight hundred twenty thousand one hundred forty-five

Notation

Scientific notation	8.20145 × 10^5
Engineering notation	8.20145 × 10^3

Prime Factorization of 820145

Prime Factorization 5 × 61 × 2689

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	820145	Product of the distinct prime numbers

The prime factorization of 820145 is 5 × 61 × 2689. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 3, 70, 66, 495, 207, 8739, 5338, 39037, 7703, 778133, 980211, 258651, 572119, 44022698, 12313608, 147459279, 940795304, 3045847194, 9608437101

Basic calculations (n = 820145)

Multiplication

n×y

n×2	1640290
n×3	2460435
n×4	3280580
n×5	4100725

Division

n÷y

n÷2	410072.5
n÷3	273381.66666667
n÷3	205036.25
n÷5	164029

Exponentiation

n^y

n²	672637821025
n³	551660545724548625
n⁴	4.5244163827326E+23
n⁵	3.7106774742162E+29

Nth Root

^y√n

²√n	905.61857313109
³√n	93.604532921438
⁴√n	30.093497190109
⁵√n	15.232743469615

Divisors of 820145

1, 5, 61, 305, 2689, 13445, 164029, 820145

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	-820144	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 820145 can be divided by 8 positive divisors. The sum of these divisors (counting 820145) is 1, the average is 0.125.

Base conversion 820145

Base	System	Value
2	Binary	11001000001110110001
3	Ternary	1112200000202
4	Quaternary	3020032301
5	Quinary	202221040
6	Senary	25324545
8	Octal	3101661
10	Decimal	820145
12	Duodecimal	336755
16	Hexadecimal	c83b1
20	Vigesimal	52a75
36	Base36	hktt

Cryptographic Hash Functions

md5	7ecf37dea19f79476ca596fa79d01454
sha1	12bf83f34ca9334fdf53e4560ffa0eaf3d94e727
sha256	780cb1cd9504680e189f08ee74235e18795515b705a58e5abace602def7e732e
sha512	015f1411b0b19e85895a0ff297e035b4ef0a427e6dece3b2a235075a3bd43ec2179eb2f74c6ca54f81e4b64f366aa0ac8fb3fdb0292cceba05e974b034e0f3ef
ripemd-160	cf959b37faa028a8b8d9666a76cd24cd40a239a3

820145 as geometric shapes

Circle

Radius = n

Diameter	1640290
Circumference	5153123.0137568
Area	2113154037058.8

Sphere

Radius = n

Volume	2.3107902902981E+18
Surface area	8452616148235.1
Circumference	5153123.0137568

Square

Length = n

Perimeter	3280580
Area	672637821025
Diagonal	1159860.1821125

Cube

Length = n

Surface area	4035826926150
Volume	551660545724548625
Space diagonal	1420532.8095736

Equilateral Triangle

Length = n

Perimeter	2460435
Area	291260720276.93
Altitude	710266.40478679

Triangular Pyramid

Length = n

Surface area	291260720276.93
Volume	6.501381879915E+16
Height	386620.06070416