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

20405909 (number)

20405909 is an odd 8-digits composite number following 20405908 and preceding 20405910. In scientific notation, it is written as 2.0405909 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 20049120 positive integers (up to 20405909) that are relatively prime to 20405909.

Interesting facts

20405909 has 8 divisors, whose sum is 20764992
The reverse of 20405909 is 90950402
Previous prime number is 443

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty million four hundred five thousand nine hundred nine

Notation

Scientific notation	2.0405909 × 10^7
Engineering notation	2.0405909 × 10^6

Prime Factorization of 20405909

Prime Factorization 73 × 443 × 631

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20405909	Product of the distinct prime numbers

The prime factorization of 20405909 is 73 × 443 × 631. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 4, 63, 90, 381, 396, 5565, 9570, 97016, 48428, 749599, 284628, 2975829, 7037621, 43801268, 48714862, 858523460, 693279947, 8877091703, 1654960028

Basic calculations (n = 20405909)

Multiplication

n×y

n×2	40811818
n×3	61217727
n×4	81623636
n×5	102029545

Division

n÷y

n÷2	10202954.5
n÷3	6801969.6666667
n÷3	5101477.25
n÷5	4081181.8

Exponentiation

n^y

n²	416401122116281
n³	8.4970434054027E+21
n⁴	1.733898944997E+29
n⁵	3.5381784086804E+36

Nth Root

^y√n

²√n	4517.2900061873
³√n	273.26582095577
⁴√n	67.210787870604
⁵√n	28.970179700473

Divisors of 20405909

1, 73, 443, 631, 32339, 46063, 279533, 20405909

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	-20405908	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 20405909 can be divided by 8 positive divisors. The sum of these divisors (counting 20405909) is 1, the average is 0.125.

Base conversion 20405909

Base	System	Value
2	Binary	1001101110101111010010101
3	Ternary	1102101201122102
4	Quaternary	1031311322111
5	Quinary	20210442114
6	Senary	2005211445
8	Octal	115657225
10	Decimal	20405909
12	Duodecimal	6a00b85
16	Hexadecimal	1375e95
20	Vigesimal	67aef9
36	Base36	c5dat

Cryptographic Hash Functions

md5	9de08e6e97a2c39be102762406c7c1b5
sha1	d2d3f7ff42dd9b5413b22dc99c53c5759bc1164f
sha256	80c59aec898bb8f7844369746a29007527c85ec0669de4223698e7171a3914ee
sha512	016d805ec7fed182a59e05edcc10f8ea04e8c335f594a6ab4d348a1761dfea9ff880ae48b762f5c98c24a5a1cbaadd5efec16c849bf86b636cfa0854963bbd11
ripemd-160	11c8513958aaeeee37c70a356c634d33a242a767

20405909 as geometric shapes

Circle

Radius = n

Diameter	40811818
Circumference	128214107.60844
Area	1.3081627061871E+15

Sphere

Radius = n

Volume	3.5592332186196E+22
Surface area	5.2326508247482E+15
Circumference	128214107.60844

Square

Length = n

Perimeter	81623636
Area	416401122116281
Diagonal	28858313.260351

Cube

Length = n

Surface area	2498406732697686
Volume	8.4970434054027E+21
Space diagonal	35344071.162627

Equilateral Triangle

Length = n

Perimeter	61217727
Area	1.8030697495852E+14
Altitude	17672035.581314

Triangular Pyramid

Length = n

Surface area	1.8030697495852E+14
Volume	1.0013861686661E+21
Height	9619437.7534504