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

21081439 (number)

21081439 is an odd 8-digits composite number following 21081438 and preceding 21081440. In scientific notation, it is written as 2.1081439 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 20683624 positive integers (up to 21081439) that are relatively prime to 21081439.

Interesting facts

21081439 has 4 divisors, whose sum is 21479256
The reverse of 21081439 is 93418012
Previous prime number is 53

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	2.1081439 × 10^7
Engineering notation	2.1081439 × 10^6

Prime Factorization of 21081439

Prime Factorization 53 × 397763

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21081439	Product of the distinct prime numbers

The prime factorization of 21081439 is 53 × 397763. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 1, 96, 51, 852, 759, 6174, 5994, 23153, 71881, 336521, 641573, 6065123, 2010486, 88225812, 11196021, 378830603, 402691896, 9479818977, 1007137210

Basic calculations (n = 21081439)

Multiplication

n×y

n×2	42162878
n×3	63244317
n×4	84325756
n×5	105407195

Division

n÷y

n÷2	10540719.5
n÷3	7027146.3333333
n÷3	5270359.75
n÷5	4216287.8

Exponentiation

n^y

n²	444427070310721
n³	9.3691621727042E+21
n⁴	1.9751542082497E+29
n⁵	4.1639092956809E+36

Nth Root

^y√n

²√n	4591.4528201867
³√n	276.24859891593
⁴√n	67.760259888718
⁵√n	29.15949849525

Divisors of 21081439

1, 53, 397763, 21081439

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	-21081438	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 21081439 can be divided by 4 positive divisors. The sum of these divisors (counting 21081439) is 1, the average is 0.25.

Base conversion 21081439

Base	System	Value
2	Binary	1010000011010110101011111
3	Ternary	1110200001022001
4	Quaternary	1100122311133
5	Quinary	20344101224
6	Senary	2031503131
8	Octal	120326537
10	Decimal	21081439
12	Duodecimal	7087aa7
16	Hexadecimal	141ad5f
20	Vigesimal	6bf3bj
36	Base36	cjujj

Cryptographic Hash Functions

md5	5acac653f6f457a53d587feba988033a
sha1	30905be94f840119c3e44db87cc72631ac544958
sha256	62a0b8068a38f59b6993b21b2c1ea57130c8344f5eab01d6cf5bc3d834171208
sha512	b91be58047be4510860dbc6b87b881e5f3a2ec143f09fffa04375daa42cefb8b1d7cd437c0ec296cadca658ed242fd19492baf95f3504b9f8676fcde6e845113
ripemd-160	f4eac7a3f22a9554f158e3597a12f4a8ee81944e

21081439 as geometric shapes

Circle

Radius = n

Diameter	42162878
Circumference	132458587.779
Area	1.3962088191446E+15

Sphere

Radius = n

Volume	3.9245454736078E+22
Surface area	5.5848352765784E+15
Circumference	132458587.779

Square

Length = n

Perimeter	84325756
Area	444427070310721
Diagonal	29813656.948141

Cube

Length = n

Surface area	2666562421864326
Volume	9.3691621727042E+21
Space diagonal	36514123.444664

Equilateral Triangle

Length = n

Perimeter	63244317
Area	1.9244256650929E+14
Altitude	18257061.722332

Triangular Pyramid

Length = n

Surface area	1.9244256650929E+14
Volume	1.1041663510593E+21
Height	9937885.6493804