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

21000811 (number)

21000811 is an odd 8-digits composite number following 21000810 and preceding 21000812. In scientific notation, it is written as 2.1000811 × 10^7. The sum of its digits is 13. It has a total of 2 prime factors and 4 positive divisors. There are 19385352 positive integers (up to 21000811) that are relatively prime to 21000811.

Interesting facts

21000811 has 4 divisors, whose sum is 22616272
The reverse of 21000811 is 11800012
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4

Name

Name	twenty-one million eight hundred eleven

Notation

Scientific notation	2.1000811 × 10^7
Engineering notation	2.1000811 × 10^6

Prime Factorization of 21000811

Prime Factorization 13 × 1615447

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21000811	Product of the distinct prime numbers

The prime factorization of 21000811 is 13 × 1615447. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 2, 57, 92, 105, 588, 5273, 7064, 22685, 82077, 330003, 888258, 3160685, 9716212, 5446351, 39767445, 707117967, 956023918, 4945970538, 9014284900

Basic calculations (n = 21000811)

Multiplication

n×y

n×2	42001622
n×3	63002433
n×4	84003244
n×5	105004055

Division

n÷y

n÷2	10500405.5
n÷3	7000270.3333333
n÷3	5250202.75
n÷5	4200162.2

Exponentiation

n^y

n²	441034062657721
n³	9.262072994437E+21
n⁴	1.9451104442437E+29
n⁵	4.0848896813689E+36

Nth Root

^y√n

²√n	4582.664181456
³√n	275.89596915987
⁴√n	67.695377844104
⁵√n	29.137159630418

Divisors of 21000811

1, 13, 1615447, 21000811

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	-21000810	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 21000811 can be divided by 4 positive divisors. The sum of these divisors (counting 21000811) is 1, the average is 0.25.

Base conversion 21000811

Base	System	Value
2	Binary	1010000000111001001101011
3	Ternary	1110111221200211
4	Quaternary	1100013021223
5	Quinary	20334011221
6	Senary	2030041551
8	Octal	120071153
10	Decimal	21000811
12	Duodecimal	70492b7
16	Hexadecimal	140726b
20	Vigesimal	6b520b
36	Base36	ci4bv

Cryptographic Hash Functions

md5	adca06486201c0ed8d93611eed9a548c
sha1	c3b713881d640b349566b9c492ea348d6dd42b6f
sha256	55c6488dae1a79cb4b2303e2ca804c7bb221379f869f5e4e1ada5d83b5ba3cfe
sha512	f67c8f45c9a1a7dae6f9eafc4ba2146803fe5dd4c680a02dfd6f80d09e6fc2c308e65de773358045fdf4323313ce767d9c0278c2374e19d76a30f47863dfed6d
ripemd-160	a6e6e5b6ec5753b0c8733fa9166ad8df9a07ddcf

21000811 as geometric shapes

Circle

Radius = n

Diameter	42001622
Circumference	131951987.11406
Area	1.3855493712284E+15

Sphere

Radius = n

Volume	3.8796880635114E+22
Surface area	5.5421974849134E+15
Circumference	131951987.11406

Square

Length = n

Perimeter	84003244
Area	441034062657721
Diagonal	29699631.737034

Cube

Length = n

Surface area	2646204375946326
Volume	9.262072994437E+21
Space diagonal	36374471.652151

Equilateral Triangle

Length = n

Perimeter	63002433
Area	1.9097335109792E+14
Altitude	18187235.826076

Triangular Pyramid

Length = n

Surface area	1.9097335109792E+14
Volume	1.0915457703685E+21
Height	9899877.245678