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

21000643 (number)

21000643 is an odd 8-digits composite number following 21000642 and preceding 21000644. In scientific notation, it is written as 2.1000643 × 10^7. The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors. There are 19777248 positive integers (up to 21000643) that are relatively prime to 21000643.

Interesting facts

21000643 has 8 divisors, whose sum is 22237200
The reverse of 21000643 is 34600012
Previous prime number is 173

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7

Name

Name	twenty-one million six hundred forty-three

Notation

Scientific notation	2.1000643 × 10^7
Engineering notation	2.1000643 × 10^6

Prime Factorization of 21000643

Prime Factorization 19 × 173 × 6389

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21000643	Product of the distinct prime numbers

The prime factorization of 21000643 is 19 × 173 × 6389. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 73, 6, 428, 627, 1183, 1826, 36070, 47756, 110305, 223335, 5762075, 2746080, 57284779, 55870552, 561495403, 395578740, 56142195, 8135924065

Basic calculations (n = 21000643)

Multiplication

n×y

n×2	42001286
n×3	63001929
n×4	84002572
n×5	105003215

Division

n÷y

n÷2	10500321.5
n÷3	7000214.3333333
n÷3	5250160.75
n÷5	4200128.6

Exponentiation

n^y

n²	441027006413449
n³	9.2618507150476E+21
n⁴	1.9450482038601E+29
n⁵	4.0847262947057E+36

Nth Root

^y√n

²√n	4582.6458514705
³√n	275.89523346373
⁴√n	67.695242458171
⁵√n	29.137113012614

Divisors of 21000643

1, 19, 173, 3287, 6389, 121391, 1105297, 21000643

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	-21000642	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 21000643 can be divided by 8 positive divisors. The sum of these divisors (counting 21000643) is 1, the average is 0.125.

Base conversion 21000643

Base	System	Value
2	Binary	1010000000111000111000011
3	Ternary	1110111221110121
4	Quaternary	1100013013003
5	Quinary	20334010033
6	Senary	2030041111
8	Octal	120070703
10	Decimal	21000643
12	Duodecimal	7049197
16	Hexadecimal	14071c3
20	Vigesimal	6b51c3
36	Base36	ci477

Cryptographic Hash Functions

md5	4d6171cdc519baf2bd319a37319bae2d
sha1	9dc81ed2d44311f2afde54d30b3e7418fd79ce1e
sha256	19707ed579681373cbc382e888eb8146b28e44f24b63a8a0a715090335b3199c
sha512	d51e809f94f4ee64ea6878f126fc9f0e82355bc6bbad803e933d52d9436910582c454b55584cc95f4bfca9dee2edaa25f869065a2ffd807f1ced1df03450da12
ripemd-160	4f1423df9a0e9504ba9db920a31436ccd853d2a0

21000643 as geometric shapes

Circle

Radius = n

Diameter	42001286
Circumference	131950931.53892
Area	1.3855272033832E+15

Sphere

Radius = n

Volume	3.8795949553385E+22
Surface area	5.5421088135328E+15
Circumference	131950931.53892

Square

Length = n

Perimeter	84002572
Area	441027006413449
Diagonal	29699394.149156

Cube

Length = n

Surface area	2646162038480694
Volume	9.2618507150476E+21
Space diagonal	36374180.667616

Equilateral Triangle

Length = n

Perimeter	63001929
Area	1.9097029565452E+14
Altitude	18187090.333808

Triangular Pyramid

Length = n

Surface area	1.9097029565452E+14
Volume	1.0915195744913E+21
Height	9899798.0497185