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

20421809 (number)

20421809 is an odd 8-digits composite number following 20421808 and preceding 20421810. In scientific notation, it is written as 2.0421809 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 20410740 positive integers (up to 20421809) that are relatively prime to 20421809.

Interesting facts

20421809 has 4 divisors, whose sum is 20432880
The reverse of 20421809 is 90812402
Previous prime number is 2339

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty million four hundred twenty-one thousand eight hundred nine

Notation

Scientific notation	2.0421809 × 10^7
Engineering notation	2.0421809 × 10^6

Prime Factorization of 20421809

Prime Factorization 2339 × 8731

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20421809	Product of the distinct prime numbers

The prime factorization of 20421809 is 2339 × 8731. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 98, 57, 96, 837, 8373, 2605, 54129, 50842, 531451, 327021, 9790204, 4120905, 90386844, 56133688, 911636373, 677477063, 9286309366, 5365890723

Basic calculations (n = 20421809)

Multiplication

n×y

n×2	40843618
n×3	61265427
n×4	81687236
n×5	102109045

Division

n÷y

n÷2	10210904.5
n÷3	6807269.6666667
n÷3	5105452.25
n÷5	4084361.8

Exponentiation

n^y

n²	417050282832481
n³	8.5169212194009E+21
n⁴	1.7393093841065E+29
n⁵	3.5519844034131E+36

Nth Root

^y√n

²√n	4519.0495682168
³√n	273.33677750304
⁴√n	67.223876474187
⁵√n	28.974692926118

Divisors of 20421809

1, 2339, 8731, 20421809

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	-20421808	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 20421809 can be divided by 4 positive divisors. The sum of these divisors (counting 20421809) is 1, the average is 0.25.

Base conversion 20421809

Base	System	Value
2	Binary	1001101111001110010110001
3	Ternary	1102102112110022
4	Quaternary	1031321302301
5	Quinary	20211444214
6	Senary	2005413225
8	Octal	115716261
10	Decimal	20421809
12	Duodecimal	6a0a215
16	Hexadecimal	1379cb1
20	Vigesimal	67cea9
36	Base36	c5pkh

Cryptographic Hash Functions

md5	efd79daf6c37cfaf29cfa6ee775c784f
sha1	b2896f6abd30a023c136cc118e925d164dace3fc
sha256	c394141e250fe2d1b6393e81c21fdaebca57aeff878061bb7636c5b503b21edc
sha512	61b29855e139ca951bd26fa260f1f13a52de5f68540c261d721eff6e914d4a7a3523307241308487f50e0d8fef6bd678676c5c3bab06adfd50058b7aa04cc2cc
ripemd-160	d937b7693520e3a7b59492afd8b5c9fea03c6012

20421809 as geometric shapes

Circle

Radius = n

Diameter	40843618
Circumference	128314010.25483
Area	1.3102021047241E+15

Sphere

Radius = n

Volume	3.5675596178764E+22
Surface area	5.2408084188963E+15
Circumference	128314010.25483

Square

Length = n

Perimeter	81687236
Area	417050282832481
Diagonal	28880799.255993

Cube

Length = n

Surface area	2502301696994886
Volume	8.5169212194009E+21
Space diagonal	35371610.770467

Equilateral Triangle

Length = n

Perimeter	61265427
Area	1.8058806979421E+14
Altitude	17685805.385234

Triangular Pyramid

Length = n

Surface area	1.8058806979421E+14
Volume	1.0037287915117E+21
Height	9626933.085331