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

21809939 (number)

21809939 is an odd 8-digits composite number following 21809938 and preceding 21809940. In scientific notation, it is written as 2.1809939 × 10^7. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 21798000 positive integers (up to 21809939) that are relatively prime to 21809939.

Interesting facts

21809939 has 4 divisors, whose sum is 21821880
The reverse of 21809939 is 93990812
Previous prime number is 2251

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

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

Notation

Scientific notation	2.1809939 × 10^7
Engineering notation	2.1809939 × 10^6

Prime Factorization of 21809939

Prime Factorization 2251 × 9689

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21809939	Product of the distinct prime numbers

The prime factorization of 21809939 is 2251 × 9689. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 21, 98, 184, 50, 4508, 4817, 89832, 78907, 27964, 546280, 1700615, 8144790, 95876711, 57507511, 715029512, 701768155, 7223965650, 1016598642

Basic calculations (n = 21809939)

Multiplication

n×y

n×2	43619878
n×3	65429817
n×4	87239756
n×5	109049695

Division

n÷y

n÷2	10904969.5
n÷3	7269979.6666667
n÷3	5452484.75
n÷5	4361987.8

Exponentiation

n^y

n²	475673439183721
n³	1.0374408692517E+22
n⁴	2.2626522074487E+29
n⁵	4.9348306622671E+36

Nth Root

^y√n

²√n	4670.1112406451
³√n	279.39469152709
⁴√n	68.338212155756
⁵√n	29.358299063346

Divisors of 21809939

1, 2251, 9689, 21809939

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	-21809938	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 21809939 can be divided by 4 positive divisors. The sum of these divisors (counting 21809939) is 1, the average is 0.25.

Base conversion 21809939

Base	System	Value
2	Binary	1010011001100101100010011
3	Ternary	1112001001121112
4	Quaternary	1103030230103
5	Quinary	21040404224
6	Senary	2055243535
8	Octal	123145423
10	Decimal	21809939
12	Duodecimal	73795ab
16	Hexadecimal	14ccb13
20	Vigesimal	6g64gj
36	Base36	czgnn

Cryptographic Hash Functions

md5	086c4af6c1712e8626ff69d25323fdec
sha1	99b3d217968807b9308beae9a60068812e05146b
sha256	971ace1298b362525fe0726d8dc5b5e8ec564b169cb386340dcd1188321e0a9d
sha512	69ff0a71cf1f50c316e7e9475c02a330160013d59103cd765389bf8d665bce8ce25402b3a060b7c12a4f283045f6fad0eb479b3d2c655cd44889850db0d26ba7
ripemd-160	63fb068334689e4eb82adce68e913febd03f8328

21809939 as geometric shapes

Circle

Radius = n

Diameter	43619878
Circumference	137035888.27528
Area	1.4943721820474E+15

Sphere

Radius = n

Volume	4.3456221511667E+22
Surface area	5.9774887281895E+15
Circumference	137035888.27528

Square

Length = n

Perimeter	87239756
Area	475673439183721
Diagonal	30843911.52833

Cube

Length = n

Surface area	2854040635102326
Volume	1.0374408692517E+22
Space diagonal	37775922.457978

Equilateral Triangle

Length = n

Perimeter	65429817
Area	2.0597264111931E+14
Altitude	18887961.228989

Triangular Pyramid

Length = n

Surface area	2.0597264111931E+14
Volume	1.2226357895466E+21
Height	10281303.842777