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

221808 (number)

221808 is an even 6-digits composite number following 221807 and preceding 221809. In scientific notation, it is written as 2.21808 × 10^5. The sum of its digits is 21. It has a total of 6 prime factors and 20 positive divisors. There are 73920 positive integers (up to 221808) that are relatively prime to 221808.

Interesting facts

221808 has 20 divisors, whose sum is 573128
The reverse of 221808 is 808122
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 21
Digital Root 3

Name

Name	two hundred twenty-one thousand eight hundred eight

Notation

Scientific notation	2.21808 × 10^5
Engineering notation	2.21808 × 10^3

Prime Factorization of 221808

Prime Factorization 2 × 2 × 2 × 2 × 3 × 4621

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	27726	Product of the distinct prime numbers

The prime factorization of 221808 is 2 × 2 × 2 × 2 × 3 × 4621. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 10, 95, 66, 284, 836, 2274, 3667, 98575, 76657, 959997, 989360, 3154234, 7797424, 51495061, 19973926, 845032885, 505874001, 2789013920, 3383900001

Basic calculations (n = 221808)

Multiplication

n×y

n×2	443616
n×3	665424
n×4	887232
n×5	1109040

Division

n÷y

n÷2	110904
n÷3	73936
n÷3	55452
n÷5	44361.6

Exponentiation

n^y

n²	49198788864
n³	10912684960346112
n⁴	2.4205208256845E+21
n⁵	5.3689088330342E+26

Nth Root

^y√n

²√n	470.96496684998
³√n	60.533028433369
⁴√n	21.70172727803
⁵√n	11.727229955552

Divisors of 221808

1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 4621, 9242, 13863, 18484, 27726, 36968, 55452, 73936, 110904, 221808

20 divisors

τ	Total Divisors	20	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-221807	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.05	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	20	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221808 can be divided by 20 positive divisors. The sum of these divisors (counting 221808) is 1, the average is 0.05.

Base conversion 221808

Base	System	Value
2	Binary	110110001001110000
3	Ternary	102021021010
4	Quaternary	312021300
5	Quinary	24044213
6	Senary	4430520
8	Octal	661160
10	Decimal	221808
12	Duodecimal	a8440
16	Hexadecimal	36270
20	Vigesimal	17ea8
36	Base36	4r5c

Cryptographic Hash Functions

md5	713ca589817425bf9408ea6b78675b0d
sha1	224724a232abe9ab2f0c793977544cdd536a1e2a
sha256	2b62365fe8bba832e2a7c7d833258ca205ccd643f9987fe286d084296f300c4b
sha512	a469cc8b01807217baae686729b91b317bc3ad5267e2a4b21297f7ce9f8b13bae6f20ce3ef5da53507eb12f2c4667a95c28e1eacb9b4230af09dea5fed3bdd02
ripemd-160	0d0194f21a2d61f8bd9651ae5cda03e990028ab3

221808 as geometric shapes

Circle

Radius = n

Diameter	443616
Circumference	1393660.7666149
Area	154562553660.66

Sphere

Radius = n

Volume	4.5710947869818E+16
Surface area	618250214642.63
Circumference	1393660.7666149

Square

Length = n

Perimeter	887232
Area	49198788864
Diagonal	313683.88184285

Cube

Length = n

Surface area	295192733184
Volume	10912684960346112
Space diagonal	384182.72552524

Equilateral Triangle

Length = n

Perimeter	665424
Area	21303700495.825
Altitude	192091.36276262

Triangular Pyramid

Length = n

Surface area	21303700495.825
Volume	1.2860722560689E+15
Height	104561.29394762