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

20409809 (number)

20409809 is an odd 8-digits composite number following 20409808 and preceding 20409810. In scientific notation, it is written as 2.0409809 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 15747072 positive integers (up to 20409809) that are relatively prime to 20409809.

Interesting facts

20409809 has 8 divisors, whose sum is 23388288
The reverse of 20409809 is 90890402
Previous prime number is 391

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty million four hundred nine thousand eight hundred nine

Notation

Scientific notation	2.0409809 × 10^7
Engineering notation	2.0409809 × 10^6

Prime Factorization of 20409809

Prime Factorization 7 × 391 × 7457

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20409809	Product of the distinct prime numbers

The prime factorization of 20409809 is 7 × 391 × 7457. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 85, 50, 447, 994, 5133, 2997, 94043, 31687, 640875, 759437, 880672, 700800, 78821305, 14827125, 642245781, 771638120, 3784558138, 4418080695

Basic calculations (n = 20409809)

Multiplication

n×y

n×2	40819618
n×3	61229427
n×4	81639236
n×5	102049045

Division

n÷y

n÷2	10204904.5
n÷3	6803269.6666667
n÷3	5102452.25
n÷5	4081961.8

Exponentiation

n^y

n²	416560303416481
n³	8.5019162297124E+21
n⁴	1.7352248638243E+29
n⁵	3.5415608042705E+36

Nth Root

^y√n

²√n	4517.7216603062
³√n	273.28322880258
⁴√n	67.213998990584
⁵√n	28.971286978413

Divisors of 20409809

1, 7, 391, 2737, 7457, 52199, 2915687, 20409809

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20409808	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20409809 can be divided by 8 positive divisors. The sum of these divisors (counting 20409809) is 1, the average is 0.125.

Base conversion 20409809

Base	System	Value
2	Binary	1001101110110110111010001
3	Ternary	1102101220222212
4	Quaternary	1031312313101
5	Quinary	20211103214
6	Senary	2005241505
8	Octal	115666721
10	Decimal	20409809
12	Duodecimal	6a03295
16	Hexadecimal	1376dd1
20	Vigesimal	67b4a9
36	Base36	c5gb5

Cryptographic Hash Functions

md5	8e690238b234818d70a25adba1dcaad4
sha1	a869fe48e00d324017f301eabb9e3868bbbd82d6
sha256	633f88504c733d6c36d2932ea3f951e354b30d08c18399c5866c11e8122ff959
sha512	f717f1dcaf732fe7565d968b6cd38e08325c4452cf6c33eafac73e3565c192b1ea90192dcbe7addfc25ec3df6bc3298bb5abc7781ad6b8b779f5b3ab950d0930
ripemd-160	77ee581bf2bc88cf5bfcb2eead4de6caeb48a264

20409809 as geometric shapes

Circle

Radius = n

Diameter	40819618
Circumference	128238612.03114
Area	1.3086627889904E+15

Sphere

Radius = n

Volume	3.5612743424934E+22
Surface area	5.2346511559614E+15
Circumference	128238612.03114

Square

Length = n

Perimeter	81639236
Area	416560303416481
Diagonal	28863828.693244

Cube

Length = n

Surface area	2499361820498886
Volume	8.5019162297124E+21
Space diagonal	35350826.160777

Equilateral Triangle

Length = n

Perimeter	61229427
Area	1.8037590248341E+14
Altitude	17675413.080388

Triangular Pyramid

Length = n

Surface area	1.8037590248341E+14
Volume	1.0019604365183E+21
Height	9621276.2310815