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

221391 (number)

221391 is an odd 6-digits composite number following 221390 and preceding 221392. In scientific notation, it is written as 2.21391 × 10^5. The sum of its digits is 18. It has a total of 4 prime factors and 12 positive divisors. There are 138816 positive integers (up to 221391) that are relatively prime to 221391.

Interesting facts

221391 has 12 divisors, whose sum is 338832
The reverse of 221391 is 193122
Previous prime number is 17

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 three hundred ninety-one

Notation

Scientific notation	2.21391 × 10^5
Engineering notation	2.21391 × 10^3

Prime Factorization of 221391

Prime Factorization 3 × 3 × 17 × 1447

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	73797	Product of the distinct prime numbers

The prime factorization of 221391 is 3 × 3 × 17 × 1447. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 3, 24, 48, 318, 595, 1346, 9376, 63921, 85898, 433305, 872809, 850222, 4750240, 8112853, 26634444, 964057899, 139101759, 928188191, 7036036678

Basic calculations (n = 221391)

Multiplication

n×y

n×2	442782
n×3	664173
n×4	885564
n×5	1106955

Division

n÷y

n÷2	110695.5
n÷3	73797
n÷3	55347.75
n÷5	44278.2

Exponentiation

n^y

n²	49013974881
n³	10851252912879471
n⁴	2.4023697336353E+21
n⁵	5.3186303769925E+26

Nth Root

^y√n

²√n	470.52205049285
³√n	60.495070517925
⁴√n	21.691520243931
⁵√n	11.722817187279

Divisors of 221391

1, 3, 9, 17, 51, 153, 1447, 4341, 13023, 24599, 73797, 221391

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-221390	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221391 can be divided by 12 positive divisors. The sum of these divisors (counting 221391) is 1, the average is 0.083333333333333.

Base conversion 221391

Base	System	Value
2	Binary	110110000011001111
3	Ternary	102020200200
4	Quaternary	312003033
5	Quinary	24041031
6	Senary	4424543
8	Octal	660317
10	Decimal	221391
12	Duodecimal	a8153
16	Hexadecimal	360cf
20	Vigesimal	17d9b
36	Base36	4qtr

Cryptographic Hash Functions

md5	a43a5b35da68c488c705e6c6c4264c50
sha1	9517e4a0050ea20f28c9d3afec79e8a843360942
sha256	d02490d4661852dcba3490aeed63d5862122517bf8fcf88773c4fb3f8004a35d
sha512	b9c5192c357bf7e6250842ddb85d25c7f0a29e36b71cc2005e36d4a7ef055ebe4a6da256b83a821b8bd27482ff4cafd95c5f6b351c9af7a8578fba3219a7745a
ripemd-160	5337f9ec2d83542dd46dcb96020b61c3915ae835

221391 as geometric shapes

Circle

Radius = n

Diameter	442782
Circumference	1391040.6783418
Area	153981943409.38

Sphere

Radius = n

Volume	4.5453621911129E+16
Surface area	615927773637.54
Circumference	1391040.6783418

Square

Length = n

Perimeter	885564
Area	49013974881
Diagonal	313094.15478734

Cube

Length = n

Surface area	294083849286
Volume	10851252912879471
Space diagonal	383460.46033848

Equilateral Triangle

Length = n

Perimeter	664173
Area	21223673693.699
Altitude	191730.23016924

Triangular Pyramid

Length = n

Surface area	21223673693.699
Volume	1.2788324198446E+15
Height	104364.71826245