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

21000971 (number)

21000971 is an odd 8-digits composite number following 21000970 and preceding 21000972. In scientific notation, it is written as 2.1000971 × 10^7. The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors. There are 20962032 positive integers (up to 21000971) that are relatively prime to 21000971.

Interesting facts

21000971 has 4 divisors, whose sum is 21039912
The reverse of 21000971 is 17900012
Previous prime number is 547

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	twenty-one million nine hundred seventy-one

Notation

Scientific notation	2.1000971 × 10^7
Engineering notation	2.1000971 × 10^6

Prime Factorization of 21000971

Prime Factorization 547 × 38393

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000971	Product of the distinct prime numbers

The prime factorization of 21000971 is 547 × 38393. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 79, 79, 494, 958, 765, 8451, 31520, 27102, 112738, 160757, 1347197, 3630391, 97169340, 64312766, 875100695, 756510835, 106103615, 1722676421

Basic calculations (n = 21000971)

Multiplication

n×y

n×2	42001942
n×3	63002913
n×4	84003884
n×5	105004855

Division

n÷y

n÷2	10500485.5
n÷3	7000323.6666667
n÷3	5250242.75
n÷5	4200194.2

Exponentiation

n^y

n²	441040782942841
n³	9.2622846923999E+21
n⁴	1.9451697221883E+29
n⁵	4.0850452925755E+36

Nth Root

^y√n

²√n	4582.6816385169
³√n	275.8966698192
⁴√n	67.695506782333
⁵√n	29.13720402805

Divisors of 21000971

1, 547, 38393, 21000971

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	-21000970	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 21000971 can be divided by 4 positive divisors. The sum of these divisors (counting 21000971) is 1, the average is 0.25.

Base conversion 21000971

Base	System	Value
2	Binary	1010000000111001100001011
3	Ternary	1110111221220202
4	Quaternary	1100013030023
5	Quinary	20334012341
6	Senary	2030042415
8	Octal	120071413
10	Decimal	21000971
12	Duodecimal	704940b
16	Hexadecimal	140730b
20	Vigesimal	6b528b
36	Base36	ci4gb

Cryptographic Hash Functions

md5	8a1c65f39dbdb8905bb4943518168264
sha1	7271430190eadbe0065f78b70dd82ea27c7da687
sha256	9a3234f04bb26dd0411961e464c7594fc6667ea759bf492704f96e2dd9af751c
sha512	402ec91d8a82b0dea2c3f9b3a032b729cb824e4e68a3e8af7803f302f7767bb096033a76d77aa8325b9deae3f10d738433a6873901a565291e65de79fec3e4c7
ripemd-160	22acb10b6b1cd90beef65ace27f3af11ed699c33

21000971 as geometric shapes

Circle

Radius = n

Diameter	42001942
Circumference	131952992.4237
Area	1.3855704836267E+15

Sphere

Radius = n

Volume	3.8797767393468E+22
Surface area	5.5422819345069E+15
Circumference	131952992.4237

Square

Length = n

Perimeter	84003884
Area	441040782942841
Diagonal	29699858.011204

Cube

Length = n

Surface area	2646244697657046
Volume	9.2622846923999E+21
Space diagonal	36374748.780281

Equilateral Triangle

Length = n

Perimeter	63002913
Area	1.9097626106674E+14
Altitude	18187374.39014

Triangular Pyramid

Length = n

Surface area	1.9097626106674E+14
Volume	1.0915707192127E+21
Height	9899952.6704014