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

221805 (number)

221805 is an odd 6-digits composite number following 221804 and preceding 221806. In scientific notation, it is written as 2.21805 × 10^5. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 112320 positive integers (up to 221805) that are relatively prime to 221805.

Interesting facts

221805 has 16 divisors, whose sum is 290304
The reverse of 221805 is 508122
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 18
Digital Root 9

Name

Name	two hundred twenty-one thousand eight hundred five

Notation

Scientific notation	2.21805 × 10^5
Engineering notation	2.21805 × 10^3

Prime Factorization of 221805

Prime Factorization 27 × 31 × 5 × 53

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	221805	Product of the distinct prime numbers

The prime factorization of 221805 is 27 × 31 × 5 × 53. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 10, 23, 82, 859, 699, 8495, 2649, 43882, 53085, 945129, 490589, 6261044, 2332658, 33529035, 21780981, 723008154, 398840457, 8770094879, 5533248558

Basic calculations (n = 221805)

Multiplication

n×y

n×2	443610
n×3	665415
n×4	887220
n×5	1109025

Division

n÷y

n÷2	110902.5
n÷3	73935
n÷3	55451.25
n÷5	44361

Exponentiation

n^y

n²	49197458025
n³	10912242177235125
n⁴	2.4203898761216E+21
n⁵	5.3685457647316E+26

Nth Root

^y√n

²√n	470.96178188893
³√n	60.532755524812
⁴√n	21.701653897547
⁵√n	11.727198232728

Divisors of 221805

1, 5, 27, 31, 53, 135, 155, 265, 837, 1431, 1643, 4185, 7155, 8215, 44361, 221805

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-221804	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221805 can be divided by 16 positive divisors. The sum of these divisors (counting 221805) is 1, the average is 0.0625.

Base conversion 221805

Base	System	Value
2	Binary	110110001001101101
3	Ternary	102021021000
4	Quaternary	312021231
5	Quinary	24044210
6	Senary	4430513
8	Octal	661155
10	Decimal	221805
12	Duodecimal	a8439
16	Hexadecimal	3626d
20	Vigesimal	17ea5
36	Base36	4r59

Cryptographic Hash Functions

md5	767e7b30cb94df7ddf10361b12ef7cba
sha1	ac251768457410d4c0bdb72e19a701564a67d29b
sha256	4e391b0ae065cfe0c240b94eb94b16b1b3d1e3c2ca2ded519cd1ca85470427ec
sha512	7ebe43c4c7cff787827deddc655aa7fad277e5cca322b74013ab704750600cafd5ff1c77944cd328bb8f4b68ac8a1476b703b93431206660a70e619bbc9d88cc
ripemd-160	791c32f60d17949ee067e1b10c90d31308ea057d

221805 as geometric shapes

Circle

Radius = n

Diameter	443610
Circumference	1393641.917059
Area	154558372706.63

Sphere

Radius = n

Volume	4.5709093144259E+16
Surface area	618233490826.53
Circumference	1393641.917059

Square

Length = n

Perimeter	887220
Area	49197458025
Diagonal	313679.63920216

Cube

Length = n

Surface area	295184748150
Volume	10912242177235125
Space diagonal	384177.52937281

Equilateral Triangle

Length = n

Perimeter	665415
Area	21303124225.634
Altitude	192088.76468641

Triangular Pyramid

Length = n

Surface area	21303124225.634
Volume	1.2860200735788E+15
Height	104559.87973405