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

1221808 (number)

1221808 is an even 7-digits composite number following 1221807 and preceding 1221809. In scientific notation, it is written as 1.221808 × 10^6. The sum of its digits is 22. It has a total of 6 prime factors and 20 positive divisors. There are 523584 positive integers (up to 1221808) that are relatively prime to 1221808.

Interesting facts

1221808 has 20 divisors, whose sum is 2705680
The reverse of 1221808 is 8081221
Previous prime number is 7

Basic properties

Is Prime? no
Number parity even
Number length 7
Sum of Digits 22
Digital Root 4

Name

Name	one million two hundred twenty-one thousand eight hundred eight

Notation

Scientific notation	1.221808 × 10^6
Engineering notation	1.221808 × 10^6

Prime Factorization of 1221808

Prime Factorization 2 × 2 × 2 × 2 × 7 × 10909

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	152726	Product of the distinct prime numbers

The prime factorization of 1221808 is 2 × 2 × 2 × 2 × 7 × 10909. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 4, 10, 11, 800, 278, 3581, 4875, 70006, 87102, 889674, 498370, 1963974, 523573, 86694072, 12929400, 400602657, 408050591, 6953757205, 909835153

Basic calculations (n = 1221808)

Multiplication

n×y

n×2	2443616
n×3	3665424
n×4	4887232
n×5	6109040

Division

n÷y

n÷2	610904
n÷3	407269.33333333
n÷3	305452
n÷5	244361.6

Exponentiation

n^y

n²	1492814788864
n³	1823933051552346112
n⁴	2.2284959938511E+24
n⁵	2.7227942332552E+30

Nth Root

^y√n

²√n	1105.354241861
³√n	106.90573116239
⁴√n	33.246868151165
⁵√n	16.496833565655

Divisors of 1221808

1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 10909, 21818, 43636, 76363, 87272, 152726, 174544, 305452, 610904, 1221808

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	-1221807	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 1221808 can be divided by 20 positive divisors. The sum of these divisors (counting 1221808) is 1, the average is 0.05.

Base conversion 1221808

Base	System	Value
2	Binary	100101010010010110000
3	Ternary	2022002000011
4	Quaternary	10222102300
5	Quinary	303044213
6	Senary	42104304
8	Octal	4522260
10	Decimal	1221808
12	Duodecimal	4ab094
16	Hexadecimal	12a4b0
20	Vigesimal	7cea8
36	Base36	q6r4

Cryptographic Hash Functions

md5	5d36071353e53277c9fd5b3fa836c435
sha1	fd759e810b8949dd15fdf3af66781542ef93cf38
sha256	c6f35dcaece60f930a7c47e35b841a8b1ff2de6a286b339df04ea44f8c6d20e0
sha512	47b4a18213ed5f8cd73f58be5c744ced713eed528bd280706e952d6a18f150c86a79e2df06834fdabc0f0bb2132237c969f37471edcfed68af66525caeeb2960
ripemd-160	c19e5b760b3977cfc4f74ecd972b9140939eba92

1221808 as geometric shapes

Circle

Radius = n

Diameter	2443616
Circumference	7676846.0737945
Area	4689815973865.3

Sphere

Radius = n

Volume	7.6400729005286E+18
Surface area	18759263895461
Circumference	7676846.0737945

Square

Length = n

Perimeter	4887232
Area	1492814788864
Diagonal	1727897.4442159

Cube

Length = n

Surface area	8956888733184
Volume	1823933051552346112
Space diagonal	2116233.5330941

Equilateral Triangle

Length = n

Perimeter	3665424
Area	646407765150.66
Altitude	1058116.7665471

Triangular Pyramid

Length = n

Surface area	646407765150.66
Volume	2.1495257153049E+17
Height	575965.81473865