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

20990909 (number)

20990909 is an odd 8-digits composite number following 20990908 and preceding 20990910. In scientific notation, it is written as 2.0990909 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 20956380 positive integers (up to 20990909) that are relatively prime to 20990909.

Interesting facts

20990909 has 4 divisors, whose sum is 21025440
The reverse of 20990909 is 90909902
Previous prime number is 619

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	twenty million nine hundred ninety thousand nine hundred nine

Notation

Scientific notation	2.0990909 × 10^7
Engineering notation	2.0990909 × 10^6

Prime Factorization of 20990909

Prime Factorization 619 × 33911

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20990909	Product of the distinct prime numbers

The prime factorization of 20990909 is 619 × 33911. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 9, 97, 99, 436, 101, 506, 5849, 38217, 93389, 582981, 384388, 8865881, 9602785, 72227141, 34343474, 441685752, 716059666, 6538411929, 998977627

Basic calculations (n = 20990909)

Multiplication

n×y

n×2	41981818
n×3	62972727
n×4	83963636
n×5	104954545

Division

n÷y

n÷2	10495454.5
n÷3	6996969.6666667
n÷3	5247727.25
n÷5	4198181.8

Exponentiation

n^y

n²	440618260646281
n³	9.2489778129644E+21
n⁴	1.9414445161495E+29
n⁵	4.0752685167044E+36

Nth Root

^y√n

²√n	4581.583678162
³√n	275.85260017805
⁴√n	67.687396745347
⁵√n	29.134411445266

Divisors of 20990909

1, 619, 33911, 20990909

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20990908	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20990909 can be divided by 4 positive divisors. The sum of these divisors (counting 20990909) is 1, the average is 0.25.

Base conversion 20990909

Base	System	Value
2	Binary	1010000000100101110111101
3	Ternary	1110111110010002
4	Quaternary	1100010232331
5	Quinary	20333202114
6	Senary	2025524045
8	Octal	120045675
10	Decimal	20990909
12	Duodecimal	7043625
16	Hexadecimal	1404bbd
20	Vigesimal	6b3h59
36	Base36	chwot

Cryptographic Hash Functions

md5	6036d8bf0c02a2c858da4b07c72894b0
sha1	aac84cd4eaaedc7ea63826118d44691913d55e1b
sha256	b6c3bf5176f784b16522804ba0b475082a0a0e09568fb2ad8abce01498bc990b
sha512	05e3abbfb0a0dedc48cc9ab4da94c253161f442fb3e9fe88ed82c6df25781a4b10a6a40bbe2a10204bbf81f161b93134115afb229a2ea9e9ec5b97d47669a994
ripemd-160	6e7db1ebdfafba9b1638cfd242d30a65745a71b3

20990909 as geometric shapes

Circle

Radius = n

Diameter	41981818
Circumference	131889771.01314
Area	1.3842430906839E+15

Sphere

Radius = n

Volume	3.8742027667232E+22
Surface area	5.5369723627355E+15
Circumference	131889771.01314

Square

Length = n

Perimeter	83963636
Area	440618260646281
Diagonal	29685628.194339

Cube

Length = n

Surface area	2643709563877686
Volume	9.2489778129644E+21
Space diagonal	36357320.885055

Equilateral Triangle

Length = n

Perimeter	62972727
Area	1.907933035455E+14
Altitude	18178660.442527

Triangular Pyramid

Length = n

Surface area	1.907933035455E+14
Volume	1.0900024884318E+21
Height	9895209.3981132