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

21000871 (number)

21000871 is an odd 8-digits composite number following 21000870 and preceding 21000872. In scientific notation, it is written as 2.1000871 × 10^7. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 19895544 positive integers (up to 21000871) that are relatively prime to 21000871.

Interesting facts

21000871 has 4 divisors, whose sum is 22106200
The reverse of 21000871 is 17800012
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1

Name

Name	twenty-one million eight hundred seventy-one

Notation

Scientific notation	2.1000871 × 10^7
Engineering notation	2.1000871 × 10^6

Prime Factorization of 21000871

Prime Factorization 19 × 1105309

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000871	Product of the distinct prime numbers

The prime factorization of 21000871 is 19 × 1105309. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 79, 26, 370, 90, 2893, 3575, 50067, 2155, 996019, 242377, 7168381, 2183464, 46772855, 42086712, 134544312, 873890942, 2484455251, 85206263

Basic calculations (n = 21000871)

Multiplication

n×y

n×2	42001742
n×3	63002613
n×4	84003484
n×5	105004355

Division

n÷y

n÷2	10500435.5
n÷3	7000290.3333333
n÷3	5250217.75
n÷5	4200174.2

Exponentiation

n^y

n²	441036582758641
n³	9.262152380795E+21
n⁴	1.9451326733142E+29
n⁵	4.0849480350157E+36

Nth Root

^y√n

²√n	4582.6707278616
³√n	275.89623190753
⁴√n	67.695426196026
⁵√n	29.137176279562

Divisors of 21000871

1, 19, 1105309, 21000871

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	-21000870	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 21000871 can be divided by 4 positive divisors. The sum of these divisors (counting 21000871) is 1, the average is 0.25.

Base conversion 21000871

Base	System	Value
2	Binary	1010000000111001010100111
3	Ternary	1110111221210001
4	Quaternary	1100013022213
5	Quinary	20334011441
6	Senary	2030042131
8	Octal	120071247
10	Decimal	21000871
12	Duodecimal	7049347
16	Hexadecimal	14072a7
20	Vigesimal	6b523b
36	Base36	ci4dj

Cryptographic Hash Functions

md5	b5d8d448134ecccb154d7586a9db871f
sha1	ba5f201a60c159decdefa00c073ef16bf96f149a
sha256	42a55d7d84e031aacf7e46026c3b755fade1039b25b7ffca4ea197e7d855f169
sha512	9306976d37f0fe18eb2b15013b30001ccec96dea3404f25862b86c421fdd44da02f7e7b9bbd42afc65f5dfbac3c306af52df7aff2c3b0e4a4effd916438692e0
ripemd-160	9caad852d3644cb08f5f24526dcbad4a72d1c290

21000871 as geometric shapes

Circle

Radius = n

Diameter	42001742
Circumference	131952364.10517
Area	1.3855572883589E+15

Sphere

Radius = n

Volume	3.8797213167913E+22
Surface area	5.5422291534356E+15
Circumference	131952364.10517

Square

Length = n

Perimeter	84003484
Area	441036582758641
Diagonal	29699716.589848

Cube

Length = n

Surface area	2646219496551846
Volume	9.262152380795E+21
Space diagonal	36374575.5752

Equilateral Triangle

Length = n

Perimeter	63002613
Area	1.9097444233363E+14
Altitude	18187287.7876

Triangular Pyramid

Length = n

Surface area	1.9097444233363E+14
Volume	1.0915551261406E+21
Height	9899905.5299493