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

21081409 (number)

21081409 is an odd 8-digits composite number following 21081408 and preceding 21081410. In scientific notation, it is written as 2.1081409 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 20164804 positive integers (up to 21081409) that are relatively prime to 21081409.

Interesting facts

21081409 has 4 divisors, whose sum is 21998016
The reverse of 21081409 is 90418012
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

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

Notation

Scientific notation	2.1081409 × 10^7
Engineering notation	2.1081409 × 10^6

Prime Factorization of 21081409

Prime Factorization 23 × 916583

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21081409	Product of the distinct prime numbers

The prime factorization of 21081409 is 23 × 916583. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 8, 38, 86, 572, 36, 3839, 7340, 45489, 61809, 989016, 352294, 9378590, 8542770, 1340488, 97419793, 379513360, 752233719, 6064969894, 3886397995

Basic calculations (n = 21081409)

Multiplication

n×y

n×2	42162818
n×3	63244227
n×4	84325636
n×5	105407045

Division

n÷y

n÷2	10540704.5
n÷3	7027136.3333333
n÷3	5270352.25
n÷5	4216281.8

Exponentiation

n^y

n²	444425805425281
n³	9.3691221743248E+21
n⁴	1.9751429652791E+29
n⁵	4.1638796684521E+36

Nth Root

^y√n

²√n	4591.4495532457
³√n	276.24846787709
⁴√n	67.760235782099
⁵√n	29.159490196144

Divisors of 21081409

1, 23, 916583, 21081409

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	-21081408	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 21081409 can be divided by 4 positive divisors. The sum of these divisors (counting 21081409) is 1, the average is 0.25.

Base conversion 21081409

Base	System	Value
2	Binary	1010000011010110101000001
3	Ternary	1110200001020221
4	Quaternary	1100122311001
5	Quinary	20344101114
6	Senary	2031503041
8	Octal	120326501
10	Decimal	21081409
12	Duodecimal	7087a81
16	Hexadecimal	141ad41
20	Vigesimal	6bf3a9
36	Base36	cjuip

Cryptographic Hash Functions

md5	b0cb0fd502f90b58f49cdcbe6981ec1d
sha1	a612bc86e45e796b3cabbec661dd14a26a8b4b74
sha256	a4fe4dca6d47f936a89a732f1cbe486fe041e6541568407668e99fc3a4d350eb
sha512	d8653fde797f8946ff78f83c3d3bdeb8c5a8b7ad6ae7e7e2b950718dc08c5c612d6da196b65d5b1d24b1b8d68579f50a62ff11908ee7eef4bde71a9c36305d5d
ripemd-160	e2a6efe292c61bb30c41e820862e339b3401698f

21081409 as geometric shapes

Circle

Radius = n

Diameter	42162818
Circumference	132458399.28344
Area	1.3962048453898E+15

Sphere

Radius = n

Volume	3.9245287191259E+22
Surface area	5.5848193815592E+15
Circumference	132458399.28344

Square

Length = n

Perimeter	84325636
Area	444425805425281
Diagonal	29813614.521734

Cube

Length = n

Surface area	2666554832551686
Volume	9.3691221743248E+21
Space diagonal	36514071.48314

Equilateral Triangle

Length = n

Perimeter	63244227
Area	1.9244201879783E+14
Altitude	18257035.74157

Triangular Pyramid

Length = n

Surface area	1.9244201879783E+14
Volume	1.104161637205E+21
Height	9937871.5072447